Gold catalysis: Evidence for the in-situ reduction of gold(III) during the cyclization of allenyl carbinols

被引：228

作者：

Hashmi, ASK

Blanco, MC

Fischer, D

Bats, JW

机构：

[1] Univ Stuttgart, Inst Organ Chem, D-70569 Stuttgart, Germany

[2] Univ Frankfurt, Inst Organ Chem & Chem Biol, D-60439 Frankfurt, Germany

来源：

EUROPEAN JOURNAL OF ORGANIC CHEMISTRY | 2006年 / 2006卷 / 06期

关键词：

alkynes; allenes; dihydrofurans; gold; homogeneous catalysis;

D O I：

10.1002/ejoc.200600009

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Products of an oxidative coupling were obtained in the gold(III)-catalyzed cycloisomerization of tertiary allenyl carbinols. The absence of reduced organic products and an increase of these coupling products with the amount of gold(III) catalyst suggests that gold(III) is reduced in situ, possibly to gold(I) catalysts which were also shown to be active for these transformations. (c) Wiley-VCH Verlag GmbH & Co. KGaA.

引用

页码：1387 / 1389

页数：3

共 28 条

[1] AuCl3-catalyzed benzannulation:: Synthesis of naphthyl ketone derivatives from o-alkynylbenzaldehydes with alkynes [J].