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Titolo:
Formation of silazirconacyclopentenes from zirconium-silene complex and alkynes and their reactivities
Autore:
Kuroda, S; Dekura, F; Sato, Y; Mori, M;
Indirizzi:
Hokkaido Univ, Grad Sch Pharmaceut Sci, Sapporo, Hokkaido 0600812, Japan Hokkaido Univ Sapporo Hokkaido Japan 0600812 oro, Hokkaido 0600812, Japan
Titolo Testata:
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
fascicolo: 18, volume: 123, anno: 2001,
pagine: 4139 - 4146
SICI:
0002-7863(20010509)123:18<4139:FOSFZC>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
CARBON BOND FORMATION; LOW-TEMPERATURE PHOTOCHEMISTRY; METAL-PROMOTED CYCLIZATION; SILYL HYDRIDE COMPLEXES; RAY CRYSTAL-STRUCTURE; X = CL; TRIS(TRIMETHYLSILYL)SILYL DERIVATIVES; HYDROZIRCONATION-TRANSMETALATION; ETA-2-SILANIMINE COMPLEXES; PHOSPHINE COMPLEXES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Physical, Chemical & Earth Sciences
Citazioni:
91
Recensione:
Indirizzi per estratti:
Indirizzo: Mori, M Hokkaido Univ, Grad Sch Pharmaceut Sci, Sapporo, Hokkaido 0600812,Japan Hokkaido Univ Sapporo Hokkaido Japan 0600812 kaido 0600812, Japan
Citazione:
S. Kuroda et al., "Formation of silazirconacyclopentenes from zirconium-silene complex and alkynes and their reactivities", J AM CHEM S, 123(18), 2001, pp. 4139-4146

Abstract

During the course of our study on the formation of a complex having a zirconium-silicon bond, we found that zirconium-silene complex 7 was formed from Cp2ZrCl2 and Me2PhSiLi. In the presence of alkyne, diarylalkyne reacted with silene coordinated with zirconium to give silazirconacyclopentene 8. Onthe other hand, dialkylalkyne inserted into a zirconium-silene complex gave silazirconacyclopentene 9. Hydrolysis of 8 or 9 afforded vinylsilane 13 or allylsilane 16. Transmetalation of zirconacycle 8 into copper in the presence of allyl halide gave a bis-allylated compound in high yield, indicating that alkylation occurred on the alkyne carbon and the methyl group of silicon. From bis-allylated compounds, eight-membered ring compounds having silicon were obtained in high yield using olefin metathesis.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 20/09/20 alle ore 04:33:26