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Titolo:
SYNTHESIS OF BICYCLO[2.2.1]HEPTA-2,5-DIEN YL SUBSTITUTED PORPHYRINS
Autore:
LUDLEY F; BREITMAIER E;
Indirizzi:
UNIV BONN,INST ORGAN CHEM & BIOCHEM,GERHARD DOMAGK STR 1 D-53121 BONNGERMANY UNIV BONN,INST ORGAN CHEM & BIOCHEM D-53121 BONN GERMANY
Titolo Testata:
Synthesis
fascicolo: 9, , anno: 1994,
pagine: 949 - 952
SICI:
0039-7881(1994):9<949:SOBYSP>2.0.ZU;2-L
Fonte:
ISI
Lingua:
GER
Soggetto:
CONJUGATED POLYENES; OPTICAL-PROPERTIES; TETRAPHENYLPORPHYRINS; ISOMERIZATION; EPOXIDATION; DERIVATIVES; COMPLEXES;
Keywords:
PORPHYRINS; BICYCLO(2.2.1)HEPTA-2,5-DIENE; SOLAR ENERGY STORAGE; WITTIG; MC DONALD;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
32
Recensione:
Indirizzi per estratti:
Citazione:
F. Ludley e E. Breitmaier, "SYNTHESIS OF BICYCLO[2.2.1]HEPTA-2,5-DIEN YL SUBSTITUTED PORPHYRINS", Synthesis, (9), 1994, pp. 949-952

Abstract

(E)- and rmylstyryl)-3-phenylbicyclo[2.2.1]hepta-2,5-dienes (7a,b) are prepared by Wittig alkenylation of 4-(1,3-dioxolan2-yl)benzyltriphenylphosphonium bromide (4) and phenylbicyclo[2.2.1]hepta-2,5-diene-2-carbaldehyde (5) in tetrahydrofuran to give (E)- and (Z)-2-[p-(1,3-dioxolan-)-yl)styryl]- 3-phenylbicyclo[2.2.1]hepta-2,5-diene (6a,b) in 99% yield (E/Z-ratio 64:36) and the aldehydes 7a,b, after subsequent deprotection. Reaction of the aldehyde 7a with 3,3'-diethyl-2,2'-dimethyl-2,2'-dipyrrylmethane (8) affords porphyrine 1a in 60% yield, reactions of aldehydes 7a,b with pyrrole 9 give porphyrins 2a,b in 39 and 11% yield, respectively.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/09/20 alle ore 23:15:44