Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Double intramolecular hetero Diels-Alder reactions of alpha,beta-unsaturated hydrazones as 1-azadienes: a new route to 2,2 '-bipyridines
Autore:
Bushby, N; Moody, CJ; Riddick, DA; Waldron, IR;
Indirizzi:
Univ Exeter, Sch Chem, Exeter EX4 4QD, Devon, England Univ Exeter Exeter Devon England EX4 4QD , Exeter EX4 4QD, Devon, England Univ Loughborough, Dept Chem, Loughborough LE11 3TU, Leics, England Univ Loughborough Loughborough Leics England LE11 3TU 3TU, Leics, England Astra Zeneca, Macclesfield SK10 2NA, Cheshire, England Astra Zeneca Macclesfield Cheshire England SK10 2NA NA, Cheshire, England
Titolo Testata:
JOURNAL OF THE CHEMICAL SOCIETY-PERKIN TRANSACTIONS 1
fascicolo: 18, , anno: 2001,
pagine: 2183 - 2193
SICI:
1472-7781(20010921):18<2183:DIHDRO>2.0.ZU;2-#
Fonte:
ISI
Lingua:
ENG
Soggetto:
CATALYZED ALLYLIC SUBSTITUTION; ASYMMETRIC CYCLOPROPANATION; ENANTIOSELECTIVE ADDITION; CHIRAL 2,2'-BIPYRIDINE; PROMOTHIOCIN-A; RING-SYSTEMS; ACID IBX; LIGANDS; 1-DIMETHYLAMINO-1-AZADIENES; BENZALDEHYDE;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Physical, Chemical & Earth Sciences
Citazioni:
72
Recensione:
Indirizzi per estratti:
Indirizzo: Moody, CJ Univ Exeter, Sch Chem, Stocker Rd, Exeter EX4 4QD, Devon, England Univ Exeter Stocker Rd Exeter Devon England EX4 4QD von, England
Citazione:
N. Bushby et al., "Double intramolecular hetero Diels-Alder reactions of alpha,beta-unsaturated hydrazones as 1-azadienes: a new route to 2,2 '-bipyridines", J CHEM S P1, (18), 2001, pp. 2183-2193

Abstract

Salicylaldehyde was converted into the O-propynyl- and O-butynyl alpha,beta -unsaturated aldehydes 4 and ketones 6, subsequent reaction of which withNN-dimethylhydrazine and alkyne homocoupling gave the 1,3-diyne bis(hydrazones) 8, substrates for a double intramolecular hetero Diels-Alder reaction. Similar substrates 11, 15a/15c and 15b/15d were prepared from 2-(N-benzoylamino)cinnamaldehyde, hex-5-ynol and hept-6-ynol respectively. Heating the1,3-diynyl bis(alpha,beta -unsaturated hydrazones) 8a, 8c, 11 and 15a resulted in double intramolecular Diels-Alder reaction to give, after aromatisation by loss of dimethylamine, 2,2'-bipyridines 21-24.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 14/07/20 alle ore 11:08:06