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Titolo:
Efficient diastereoselective pinacol coupling reaction of aliphatic and aromatic aldehydes by using newly utilized low valent titanium bromide and iodide species
Autore:
Mukaiyama, T; Yoshimura, N; Igarashi, K; Kagayama, A;
Indirizzi:
Sci Univ Tokyo, Fac Sci, Dept Appl Chem, Shinjuku Ku, Tokyo 1628601, JapanSci Univ Tokyo Tokyo Japan 1628601 em, Shinjuku Ku, Tokyo 1628601, Japan
Titolo Testata:
TETRAHEDRON
fascicolo: 13, volume: 57, anno: 2001,
pagine: 2499 - 2506
SICI:
0040-4020(20010326)57:13<2499:EDPCRO>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Soggetto:
SAMARIUM DIIODIDE; STEREOSELECTIVE PINACOLIZATION; CARBONYL-COMPOUNDS; MCMURRY REACTION; KETONES; CHEMISTRY; CHLORIDE; REAGENTS; COMPLEX; LIGAND;
Keywords:
coupling reactions; aldehydes; diols; diastereoselection; low valent titanium species;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Life Sciences
Physical, Chemical & Earth Sciences
Citazioni:
39
Recensione:
Indirizzi per estratti:
Indirizzo: Mukaiyama, T Sci Univ Tokyo, Fac Sci, Dept Appl Chem, Shinjuku Ku, Tokyo 1628601, Japan Sci Univ Tokyo Tokyo Japan 1628601 Ku, Tokyo 1628601, Japan
Citazione:
T. Mukaiyama et al., "Efficient diastereoselective pinacol coupling reaction of aliphatic and aromatic aldehydes by using newly utilized low valent titanium bromide and iodide species", TETRAHEDRON, 57(13), 2001, pp. 2499-2506

Abstract

Reductive coupling reaction of aromatic and aliphatic aldehydes proceeded under mild conditions to give the corresponding pinacols in moderate to high yields and DL-diastereoselectivities by using combinations of either low valent titanium(II) bromide and copper or titanium(IV)) iodide and copper in a mixed solvent of dichloromethane and pivalonitrile. In the case of using titanium(IV) iodide and copper, pinacols were obtained in good to high yields with moderate to high diastereoselectivities irrespective of the number of substitutuents at a-position of aliphatic aldehydes. (C) 2001 ElsevierScience Ltd. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 09/04/20 alle ore 19:55:24