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Asymmetric Au(i)-catalyzed synthesis of bicyclo[4.1.0]heptene derivatives via a cycloisomerization process of 1,6-enynes

Chao, Chung-Meng ; Beltrami, Denis ; Toullec, Patrick Y ; Michelet, Véronique

Chemical communications (Cambridge, England), 2009-01 (45), p.6988-6990 [Periódico revisado por pares]

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Título:
Asymmetric Au(i)-catalyzed synthesis of bicyclo[4.1.0]heptene derivatives via a cycloisomerization process of 1,6-enynes
Autor: Chao, Chung-Meng ; Beltrami, Denis ; Toullec, Patrick Y ; Michelet, Véronique
Assuntos: Bridged Bicyclo Compounds - chemical synthesis ; Bridged Bicyclo Compounds - chemistry ; Catalysis ; Cyclization ; Gold - chemistry ; Stereoisomerism ; Toluene - chemistry
É parte de: Chemical communications (Cambridge, England), 2009-01 (45), p.6988-6990
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: The enantioselective asymmetric gold-catalyzed cycloisomerization reactions of heteroatom tethered 1,6-enynes are conducted in the presence of a chiral cationic Au(i) catalyst ((R)-4-MeO-3,5-(t-Bu)(2)-MeOBIPHEP-(AuCl)(2)/AgOTf system) in toluene under mild conditions and lead to functionalized bicyclo[4.1.0]heptene derivatives in excellent enantiomeric excesses ranging from 90-98%.
Editor: England
Idioma: Inglês

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