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Titolo:
Preparation of diynes via selective bisalkynylation of zirconacycles
Autore:
Liu, YH; Xi, CJ; Hara, R; Nakajima, K; Yamazaki, A; Kotora, M; Takahashi, T;
Indirizzi:
Hokkaido Univ, Catalysis Res Ctr, Kita Ku, Sapporo, Hokkaido 0600811, Japan Hokkaido Univ Sapporo Hokkaido Japan 0600811 oro, Hokkaido 0600811, Japan Hokkaido Univ, Grad Sch Pharmaceut Sci, Kita Ku, Sapporo, Hokkaido 0600811, Japan Hokkaido Univ Sapporo Hokkaido Japan 0600811 oro, Hokkaido 0600811, Japan Sci & Technol Corp, CREST, Sapporo, Hokkaido 0600811, Japan Sci & Technol Corp Sapporo Hokkaido Japan 0600811 Hokkaido 0600811, Japan Aichi Univ Educ, Dept Chem, Kariya, Aichi 4488542, Japan Aichi Univ Educ Kariya Aichi Japan 4488542 , Kariya, Aichi 4488542, Japan
Titolo Testata:
JOURNAL OF ORGANIC CHEMISTRY
fascicolo: 21, volume: 65, anno: 2000,
pagine: 6951 - 6957
SICI:
0022-3263(20001020)65:21<6951:PODVSB>2.0.ZU;2-G
Fonte:
ISI
Lingua:
ENG
Soggetto:
CARBON BOND FORMATION; ONE-POT CONVERSION; HIGHER-ORDER; HYDROZIRCONATION-TRANSMETALATION; CONVENIENT METHOD; ALKYNES; COPPER; ALKENES; REAGENTS; ZIRCONACYCLOPENTADIENES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Physical, Chemical & Earth Sciences
Citazioni:
35
Recensione:
Indirizzi per estratti:
Indirizzo: Takahashi, T Hokkaido Univ, Catalysis Res Ctr, Kita Ku, Sapporo, Hokkaido 0600811, Japan Hokkaido Univ Sapporo Hokkaido Japan 0600811 0600811, Japan
Citazione:
Y.H. Liu et al., "Preparation of diynes via selective bisalkynylation of zirconacycles", J ORG CHEM, 65(21), 2000, pp. 6951-6957

Abstract

Reaction of alkynyl halides with in situ prepared zirconacyclopentanes, -pentenes, and -pentadienes in the presence of CuCl under mild reaction conditions afforded alkynes or diynes. Control of the reaction conditions selectively afforded monoalkynylation products of zirconacycles. Reaction of zirconacycles with 2 equiv of alkynyl halides resulted in the formation of diynes. Selective monoalkynylation of zirconacycle with an alkynyl halide, followed by reaction with a different alkynyl halide, afforded unsymmetrical diynes. Bisalkynylation product of zirconacyclopentadiene was gradually converted into a tricyclic compound.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/09/20 alle ore 16:40:03