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La ricerca find articoli where soggetti phrase all words 'olefination' sort by level,fasc_key/DESCEND, pagina_ini_num/ASCEND ha restituito 312 riferimenti
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    1. Arisawa, M; Yamaguchi, M
      Stereoselective synthesis of (E)- and (Z)-allylphosphonium salts by palladium-catalyzed addition of phosphine to allene

      ADVANCED SYNTHESIS & CATALYSIS
    2. Westman, J
      An efficient combination of microwave dielectric heating and the use of solid-supported triphenylphosphine for Wittig reactions

      ORGANIC LETTERS
    3. Harcken, C; Martin, SF
      Improved E-selectivity in the Wittig reaction of stabilized ylides with alpha-alkoxyaldehydes and sugar lactols

      ORGANIC LETTERS
    4. Fleming, I; Hrovat, DA; Borden, WT
      The origin of Felkin-Anh control from an electropositive substituent adjacent to the carbonyl group

      JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 2
    5. Sjovall, S; Johansson, MH; Andersson, C
      A new highly active diphosphane-palladium(II) complex as a catalyst precursor for the Heck reaction

      EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
    6. Mulzer, J; Ohler, E
      An intramolecular case of sharpless kinetic resolution: Total synthesis oflaulimalide

      ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
    7. Lebel, H; Paquet, V; Proulx, C
      Methylenation of aldehydes: Transition metal catalyzed formation of salt-free phosphorus ylides

      ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
    8. Ustynyuk, YA; Nechayev, MS; Laikov, DN; Zemlyanskii, NN; Borisova, IV; Chernyshev, EA
      Heteroorganic betaines 6. Structure and reactivity of silicon-containing organophosphorus betaines with the S--Si-C-P+ fragment: a DFT study

      RUSSIAN CHEMICAL BULLETIN
    9. Hanamoto, T; Nishiyama, K; Tateishi, H; Kondo, M
      A new route for the synthesis of mono-flourinated allyl alcohols using thestereoselective Wittig olefination via reaction of (alpha-flurovinyl)triphenylphosphonium triflate

      SYNLETT
    10. Nevalainen, M; Koskinen, AMP
      The hydrogenation of (4R)-4-[(tert-butoxycarbonyl)amino]-2-methyl-2-penten-5-olide: A precursor of trans-4-methylproline

      SYNLETT
    11. Iorga, B; Savignac, P
      Controlled reactivity of phosphonates by temporary silicon connection

      SYNLETT
    12. Katritzky, AR; Toader, D
      The preparation of mono-, 1,1-di-,trans-1,2-di- and trisubstituted ethylenes by benzotriazole methodology

      SYNLETT
    13. Ukai, K; Arioka, D; Yoshino, H; Fushimi, H; Oshima, K; Utimoto, K; Matsubara, S
      alpha-oxygen-atom induced methylenation of ketones by CH2(ZnI)(2)

      SYNLETT
    14. Hong, JH; Kim, HO; Moon, HR; Jeong, LS
      Synthesis and antiviral activity of fluoro-substituted apio dideoxynucleosides

      ARCHIVES OF PHARMACAL RESEARCH
    15. Kwan, ML; Yeung, CW; Breno, KL; Doxsee, KM
      Stereoselective one-pot synthesis of vinylsilanes from aromatic aldehydes

      TETRAHEDRON LETTERS
    16. Lakhrissi, Y; Taillefumier, C; Chretien, F; Chapleur, Y
      Facile dibromoolefination of lactones using bromomethylenetriphenylphosphorane

      TETRAHEDRON LETTERS
    17. Chowdhury, MA; Senboku, H; Tokuda, M; Masuda, Y; Chiba, T
      A facile synthesis of ring-fused alkylidenecyclopropanes by olefination reaction of bicyclo[n.1.0]alkanone N,O-hemiacetals with Wittig reagents

      TETRAHEDRON LETTERS
    18. Galano, JM; Audran, G; Monti, H
      First enantioselective total synthesis of both enantiomers of lancifolol. Correlation: Absolute configuration/specific rotation

      TETRAHEDRON LETTERS
    19. Qing, FL; Zhang, XG
      A one-pot synthesis of (E)-alpha-bromo-alpha,beta-unsaturated esters and their trifluoromethylation: a general and stereoselective route to (E)-alpha-trifluoromethyl-alpha,beta-unsaturated esters

      TETRAHEDRON LETTERS
    20. Waterson, AG; Kruger, AW; Meyers, AI
      Studies directed toward the synthesis of viridenomycin. Route 2: a second generation approach

      TETRAHEDRON LETTERS
    21. Janecki, T; Blaszczyk, E
      Stereocontrolled synthesis of 5-(1 '-hydroxyalkyl)-3-methylidenetetrahydro-2-furanones

      TETRAHEDRON LETTERS
    22. Dai, WM; Lau, CW
      Asymmetric Wittig reactions of chiral arsonium ylides. Part 2: Atroposelective olefination of axially chiral N,N-dialkyl 2-formyl-1-naphthamides

      TETRAHEDRON LETTERS
    23. Motoyoshiya, J; Kusaura, T; Kokin, K; Yokoya, S; Takaguchi, Y; Narita, S; Aoyama, H
      The Horner-Wadsworth-Emmons reaction of mixed phosphonoacetates and aromatic aldehydes: geometrical selectivity and computational investigation

      TETRAHEDRON
    24. Rose, NGW; Blaskovich, MA; Wong, A; Lajoie, GA
      Synthesis of enantiomerically enriched beta,gamma-unsaturated-alpha-amino acids

      TETRAHEDRON
    25. Kisanga, P; D'Sa, B; Verkade, J
      P(RNCH2CH2)(3)N: an efficient promoter for the direct synthesis of E-alpha,beta-unsaturated esters

      TETRAHEDRON
    26. Dondoni, A; Formaglio, P; Marra, A; Massi, A
      Selectivity in the SmI2-induced deoxygenation of thiazolylketoses for formyl C-glycoside synthesis and revised structure of C-ribofuranosides

      TETRAHEDRON
    27. Nakamura, S; Hayakawa, T; Nishi, T; Watanabe, Y; Toru, T
      Stereoselective aldol reaction of alpha-seleno carbonyl compounds: preparation of (Z)-alpha,beta-unsaturated carbonyl compounds

      TETRAHEDRON
    28. Itami, K; Nokami, T; Yoshida, J
      Facile generation of [bis(2-pyridyldimethylsilyl)methyl]lithium and its reaction with carbonyl compounds. New method for the stereoselective synthesis of vinylsilanes

      TETRAHEDRON
    29. Harris, JM; O'Doherty, GA
      An olefination approach to the enantioselective syntheses of several styryllactones

      TETRAHEDRON
    30. Grison, C; Geneve, S; Halbin, E; Coutrot, P
      Stereoselective synthesis of vinylogous peptides

      TETRAHEDRON
    31. Palacios, F; Aparicio, D; Garcia, J; Rodriguez, E; Fernandez-Acebes, A
      A convenient synthesis of racemic and optically active 1-aza-1,3-dienes derived from gamma-amino esters: reduction to alpha,beta-unsaturated and saturated gamma-amino acid derivatives

      TETRAHEDRON
    32. Marko, IE; Murphy, F; Kumps, L; Ates, A; Touillaux, R; Craig, D; Carballares, S; Dolan, S
      Efficient preparation of trisubstituted alkenes using the SmI2 modification of the Julia-Lythgoe olefination of ketones and aldehydes

      TETRAHEDRON
    33. Moser, WH
      The Brook rearrangement in tandem bond formation strategies

      TETRAHEDRON
    34. Merour, JY; Gadonneix, P; Malapel-Andrieu, B; Desarbre, E
      Reactions of substituted 2,3-dihydro-1H-indol-3-ones and pyrrolo[2,3-b]pyridin-3-ones with Wittig and Horner-Emmons reagents: synthesis of 7-azatryptamine

      TETRAHEDRON
    35. Shastin, AV; Korotchenko, VN; Nenajdenko, VG; Balenkova, ES
      A novel synthesis of beta,beta-dibromostyrenes

      SYNTHESIS-STUTTGART
    36. Tago, K; Kogen, H
      Practical and effective total synthesis of plaunotol via novel and stereoselective method for construction of tri-substituted olefins

      JOURNAL OF SYNTHETIC ORGANIC CHEMISTRY JAPAN
    37. Bates, TF; Dandekar, SA; Longlet, JJ; Thomas, RD
      alpha-lithioalkoxysilanes: applications to alkene synthesis

      JOURNAL OF ORGANOMETALLIC CHEMISTRY
    38. Bushan, KM; Rao, GV; Soujanya, T; Rao, VJ; Saha, S; Samanta, A
      Photochemical E (trans) -> Z (cis) isomerization in substituted 1-naphthylacrylates

      JOURNAL OF ORGANIC CHEMISTRY
    39. Jeevanandam, A; Narkunan, K; Ling, YC
      Palladium-catalyzed tandem dimerization and cyclization of acetylenic ketones: A convenient method for 3,3 '-bifurans using PdCl2(PPh3)(2)

      JOURNAL OF ORGANIC CHEMISTRY
    40. Katritzky, AR; Ji, Y; Fang, Y; Prakash, I
      Novel syntheses of 2,3-disubstituted benzofurans

      JOURNAL OF ORGANIC CHEMISTRY
    41. Shen, YC; Zhang, YM
      A new "one-pot" conversion of trifluoroacetic ester to alpha-fluoro-beta-trifluoromethyl-beta-alkoxy-vinylphosphonates

      JOURNAL OF FLUORINE CHEMISTRY
    42. Gerber, P; Vogel, P
      Stereoselective synthesis of 8-oxabicyclo[3.2.1]octane-2,3,4,6,7-pentols and total asymmetric synthesis of 2,6-anhydrohepturonic acid derivatives andof beta-C-manno-pyranosides suitable for the construction of (1 -> 3)-C,C-linked trisaccharides

      HELVETICA CHIMICA ACTA
    43. de Vries, JG
      The Heck reaction in the production of fine chemicals

      CANADIAN JOURNAL OF CHEMISTRY-REVUE CANADIENNE DE CHIMIE
    44. Albeniz, AC; Espinet, P; Martin-Ruiz, B; Milstein, D
      Catalytic system for heck reactions involving insertion into Pd-(perfluoro-organyl) bonds

      JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
    45. Itami, K; Nokami, T; Yoshida, J
      [Bis(2-pyridyldimethylsilyl)methyl]lithium. New reagent for the stereoselective synthesis of vinylsilanes

      ORGANIC LETTERS
    46. Vares, L; Rein, T
      A versatile stereocontrolled approach to chiral tetrahydrofuran and tetrahydropyran derivatives via sequential asymmetric Horner-Wadsworth-Emmons andpalladium-catalyzed ring closure reactions

      ORGANIC LETTERS
    47. Tago, K; Kogen, H
      Bis(2,2,2-trifluoroethyl)bromophosphono-acetate, a novel HWE reagent for the preparation of (E)-alpha-bromoacrylates: A general and stereoselective method for the synthesis of trisubstituted alkenes

      ORGANIC LETTERS
    48. Majo, VJ; Suzuki, S; Toyota, M; Ihara, M
      The unexpected formation of bicyclo[2.2.1]heptane derivatives by Lewis acid-catalyzed transannular double cyclization

      JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1
    49. Williams, DR; Cortez, GS; Bogen, SL; Rojas, CM
      Total synthesis of Lankacyclinol

      ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
    50. Concellon, JM; Perez-Andres, JA; Rodriguez-Solla, H
      Synthesis of (E)-alpha,beta-unsaturated esters and amides with total selectivity using samarium diiodide

      ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
    51. Kojima, S; Inai, H; Hidaka, T; Ohkata, K
      Highly Z-selective synthesis of alpha,beta-unsaturated amides with the Peterson reaction between alpha-silylamides and aldehydes

      CHEMICAL COMMUNICATIONS
    52. Borisova, IV; Zemlyanskii, NN; Shestakova, AK; Ustynyuk, YA; Chernyshev, EA
      Heteroorganic betaines 1. Synthesis of betaines containing the P+-C-Si-S- and P+-C-C-S- fragments and their characterization by multinuclear NMR spectroscopy

      RUSSIAN CHEMICAL BULLETIN
    53. Li, SK; Xu, R; Xiao, XS; Bai, DL
      A stereoselective synthesis of the C(3)-C(13) and C(14)-C(24) fragments ofmacrolactin A

      CHINESE JOURNAL OF CHEMISTRY
    54. Qing, FL; Yue, XJ
      Preparation of 9,13-dicis double bonds locked retinoids

      CHINESE JOURNAL OF CHEMISTRY
    55. Murakami, N; Sugimoto, M; Nakajima, T; Kawanishi, M; Tsutsui, Y; Kobayashi, M
      Participation of the conjugated diene part for potent cytotoxicity of callystatin A, a spongean polyketide

      BIOORGANIC & MEDICINAL CHEMISTRY
    56. Lakhrissi, Y; Taillefumier, C; Lakhrissi, M; Chapleur, Y
      Efficient conditions for the synthesis of C-glycosylidene derivatives: a direct and stereoselective route to C-glycosyl compounds

      TETRAHEDRON-ASYMMETRY
    57. Zhu, YH; Demange, R; Vogel, P
      Convergent syntheses of C(1 -> 3)-linked disaccharides starting from isolevoglucosenone

      TETRAHEDRON-ASYMMETRY
    58. Wang, Q; El Khoury, M; Schlosser, M
      Bridging the final gap in stereocontrolled Wittig reactions: Methoxymethoxy-armed allylic phosphorus ylides affording conjugated dienes with high cisselectivity

      CHEMISTRY-A EUROPEAN JOURNAL
    59. Matsubara, S; Yamamoto, H; Arioka, D; Utimoto, K; Oshima, K
      Diastereoselective 1,4-addition reactions of bis(iodozincio)ethane to alpha,beta-unsaturated ketones

      SYNLETT
    60. Suzuki, T; Oriyama, T
      New olefination of acetals with TMSCH2Cu(PBu3)center dot LiI under the influence of BF3 center dot OEt2

      SYNLETT
    61. Matsubara, S; Yoshino, H; Utimoto, K; Oshima, K
      Preparation of germyl-substituted dizinciomethanes and their reactions with electrophiles

      SYNLETT
    62. Bourgeois, D; Maiti, G; Pancrazi, A; Prunet, J
      Diastereoselective additions of nucleophiles to hindered alpha-trimethylsilyloxy aldehydes

      SYNLETT
    63. Kocienski, PJ; Bell, A; Blakemore, PR
      1-tert-butyl-1H-tetrazol-5-yl sulfones in the modified Julia olefination

      SYNLETT
    64. Chapdelaine, D; Dube, P; Deslongchamps, P
      A new allylidene phosphorane reagent for the efficient conversion of aldehydes to gamma,delta-unsaturated allyl beta-ketoesters

      SYNLETT
    65. Shen, YC
      New synthetic methodologies for carbon-carbon multiple bond formation

      ACTA CHIMICA SINICA
    66. Hassan, HHAM
      Synthesis of bridged head methyl 3,4-O-(1 ',2 '-dimethylcycloheaxane-1 ',2'-diyl)-6,7-dideoxy-alpha-D-mannooct-6-enepyranose-8,2-lactone from D-mannose

      HETEROCYCLES
    67. Liu, YK; Zhang, YM; Liu, X
      Sm/Sml(2)/TiCl4(cat.) system promoted direct alkylidenating reaction of ketones with gem-dibromomethyl sulfones: a new method for preparation of alkylidene sulfones

      JOURNAL OF CHEMICAL RESEARCH-S
    68. Takeda, T; Rahim, MA; Takamori, M; Yanai, K; Fujiwara, T
      Synthesis of carbocycles and heterocycles by the titanocene(II)-promoted reactions of thioacetals

      POLYHEDRON
    69. Szewczyk, K; Banaszek, A
      Aldono-1,5-lactones: Preparation, nucleophilic substitution and deoxygenation reactions

      POLISH JOURNAL OF CHEMISTRY
    70. Takeda, T; Takagi, Y; Saeki, N; Fujiwara, T
      Preparation of alka-2,4-dienylsilanes and 3-cyclopropylprop-2-enylsilanes by the titanocene(II)-promoted reaction of 2,4-bis(phenylthio)but-3-enylsilanes

      TETRAHEDRON LETTERS
    71. Dondoni, A; Mizuno, M; Marra, A
      Improved iterative olefination approach to oligosaccharide mimics: stereoselective synthesis of beta-(1 -> 6)-D-galactopentaose methylene isostere

      TETRAHEDRON LETTERS
    72. Dondoni, A; Giovannini, PP; Marra, A
      Convergent synthesis of pyrrolidine-based (1 -> 6)- and (1 -> 5)-aza-C-disaccharides

      TETRAHEDRON LETTERS
    73. Shindo, M; Oya, S; Murakami, R; Sato, Y; Shishido, K
      Highly E-selective synthesis of alpha,beta-unsaturated amides from N-2-methoxyphenyl aldimines via lithium ynolates

      TETRAHEDRON LETTERS
    74. Khripach, VA; Zhabinskii, VN; Konstantinova, OV; Khripach, NB
      Ireland-Claisen rearrangement of steroidal Delta(23)-22-alcohols: an application to Delta(22,25)-24-alkyl steroid synthesis

      TETRAHEDRON LETTERS
    75. Guthrie, EJ; Macritchie, J; Hartley, RC
      Alkylidenation of esters on solid support and traceless synthesis of 2-substituted benzofurans

      TETRAHEDRON LETTERS
    76. Takanami, T; Ogawa, A; Suda, K
      Reaction of cis-2,3-bis(trimethylsilyl)cyclopropanone with beta-ketophosphorus ylides: unexpected formation of furans

      TETRAHEDRON LETTERS
    77. Li, SK; Xu, R; Bai, DL
      Studies on the total synthesis of macrolactin A. A stereoselective synthesis of the C-3-C-13 and C-14-C-24 fragments

      TETRAHEDRON LETTERS
    78. Tehrani, KA; De Kimpe, N
      New synthesis of 2-methyleneaziridines and 2-methyleneazetidines by dimethyl titanocene mediated methylenation of alpha- and beta-lactams

      TETRAHEDRON LETTERS
    79. Takeda, T; Taguchi, H; Fujiwara, T
      Titanocene(II)-promoted desulfurizative acylation of thioacetals with alkanenitriles

      TETRAHEDRON LETTERS
    80. Tonder, JE; Begtrup, M; Hansen, JB; Olesen, PH
      Exploring the stereoselectivity in the Peterson reaction of several 2-substituted 1-azabicyclo[2.2.2]octan-3-ones

      TETRAHEDRON
    81. Rahim, MA; Fujiwara, T; Takeda, T
      Titanocene(II)-promoted olefination of omega,omega-bis(phenylthio)alkyl alkanoates. A new method for the preparation of omega-hydroxy ketones

      TETRAHEDRON
    82. Garofalo, A; Ragno, G; Campiani, G; Brizzi, A; Nacci, V
      Polycondensed heterocycles. Part 11: Preparation and regioselective reductions of 5-phenyl-4H-pyrrolo[1,2-a][1]benzazepin-4-one

      TETRAHEDRON
    83. Tago, K; Kogen, H
      A highly stereoselective synthesis of (E)-alpha-bromoacrylates

      TETRAHEDRON
    84. Satoh, T; Hanaki, N; Yamada, N; Asano, T
      A sulfoxide version of the Julia-Lythgoe olefination: A new method for thesynthesis of olefins from carbonyl compounds and sulfoxides with carbon-carbon coupling

      TETRAHEDRON
    85. Bellina, F; Ciucci, D; Vergamini, P; Rossi, R
      Regioselective synthesis of natural and unnatural (Z)-3-(1-alkylidene)phthalides and 3-substituted isocoumarins starting from methyl 2-hydroxybenzoates

      TETRAHEDRON
    86. Ackermann, L; El Tom, D; Furstner, A
      Ruthenium carbene complexes with imidazol-2-ylidene ligands: Syntheses of conduritol derivatives reveals superior RCM activity

      TETRAHEDRON
    87. Barbero, A; Blanco, Y; Garcia, C; Pulido, FJ
      The Peterson olefination using the tert-butyldiphenylsilyl group: Stereoselective synthesis of di- and trisubstituted alkenes

      SYNTHESIS-STUTTGART
    88. Huang, WW; Tidwell, TT
      Allenylketenes: Versatile substrates in nucleophilic, electrophilic, and cycloaddition reactions

      SYNTHESIS-STUTTGART
    89. Shen, YC; Jiang, GF
      Novel base-catalyzed olefination methodology. Stereoselective synthesis of(E)-alpha-benzenesulfinylvinylphosphonates

      SYNTHESIS-STUTTGART
    90. Ando, K
      Z-selective Horner-Tadsworth-Emmons reaction

      JOURNAL OF SYNTHETIC ORGANIC CHEMISTRY JAPAN
    91. Matsubara, S
      The reaction using gem-dizinc compounds: Structure and reactivity

      JOURNAL OF SYNTHETIC ORGANIC CHEMISTRY JAPAN
    92. Shindo, M
      Syntheses and reactions of multifunctional carbanions "ynolate anions"

      JOURNAL OF SYNTHETIC ORGANIC CHEMISTRY JAPAN
    93. Dondoni, A
      Formylation of carbohydrates and the evolution of synthetic routes to artificial oligosaccharides and glycoconjugates

      PURE AND APPLIED CHEMISTRY
    94. Sano, S
      Development of highly stereoselective reactions utilizing heteroatoms - New approach to the stereoselective Horner-Wadsworth-Emmons reaction

      YAKUGAKU ZASSHI-JOURNAL OF THE PHARMACEUTICAL SOCIETY OF JAPAN
    95. Shindo, M
      Development of new synthetic method and function of ynolate anions

      YAKUGAKU ZASSHI-JOURNAL OF THE PHARMACEUTICAL SOCIETY OF JAPAN
    96. Kawashima, T
      Small ring compounds containing highly coordinate Group 14 elements

      JOURNAL OF ORGANOMETALLIC CHEMISTRY
    97. Mulzer, J; Mantoulidis, A; Ohler, E
      Total syntheses of epothilones B and D

      JOURNAL OF ORGANIC CHEMISTRY
    98. Ando, K; Oishi, T; Hirama, M; Ohno, H; Ibuka, T
      Z-selective Horner-Wadsworth-Emmons reaction of ethyl (diarylphosphono)acetates using sodium iodide and DBU

      JOURNAL OF ORGANIC CHEMISTRY
    99. Pasquarello, C; Picasso, S; Demange, R; Malissard, M; Berger, EG; Vogel, P
      The C-disaccharide alpha-C(1 -> 3)-mannopyranoside of N-acetylgalactosamine is an inhibitor of glycohydrolases and of human alpha-1,3-fucosyltransferase VI. its epimer alpha-(1 -> 3)-mannopyranoside of N-acetyltalosamine is not

      JOURNAL OF ORGANIC CHEMISTRY
    100. Zapata, AJ; Gu, YH; Hammond, GB
      The first alpha-fluoroallenylphosphonate, the synthesis of conjugated fluoroenynes, and the stereoselective synthesis of vinylfluorophosphonates using a new multifunctional fluorine-containing building block

      JOURNAL OF ORGANIC CHEMISTRY


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Documento generato il 19/01/21 alle ore 20:08:48