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Titolo:
SMALL RINGS .89. AN ALTERNATIVE SYNTHESIS OF TETRA-TERT-BUTYLTETRAHEDRANE
Autore:
MAIER G; FLEISCHER F;
Indirizzi:
UNIV GIESSEN,INST ORGAN CHEM,HEINRICH BUFF RING 58 D-35392 GIESSEN GERMANY
Titolo Testata:
Liebigs Annalen
fascicolo: 1, , anno: 1995,
pagine: 169 - 172
SICI:
0947-3440(1995):1<169:SR.AAS>2.0.ZU;2-8
Fonte:
ISI
Lingua:
GER
Soggetto:
DIAZO-COMPOUNDS; CYCLOBUTADIENE; AZIDES; (DIAZOMETHYL)CYCLOPROPENES; ISOMERIZATION; TETRAHEDRANE;
Keywords:
CYCLOBUTADIENE; TETRAHEDRANE; AZETE; CYCLOPROPENYLDIAZOMETHANE; VALENCE ISOMERS OF PYRIDAZINE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
41
Recensione:
Indirizzi per estratti:
Citazione:
G. Maier e F. Fleischer, "SMALL RINGS .89. AN ALTERNATIVE SYNTHESIS OF TETRA-TERT-BUTYLTETRAHEDRANE", Liebigs Annalen, (1), 1995, pp. 169-172

Abstract

Cyclopropenyldiazomethane 3 is an ideal precursor for tetra-tert-butyltetrahedrane (6). Both, photochemical and thermal decomposition of 3 lead to cyclobutadiene 7, which can be photoisomerized to tetrahedrane6. Tetra-tert-butyltetrahedrane (6) is also formed directly by a cheletropic cycloaddition of the carbenic center to the cyclopropene double bond in carbene 4. This is the first example for the synthesis of a tetrahedrane, which does not occur via the corresponding cyclobutadiene. The formation of pyridazine 10 dominates the thermolysis of 3. Azete 12 is obtained both by photolysis as well as by thermolysis of Dewar-pyridazine 11, the irradiation product of 10.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 27/11/20 alle ore 21:54:00