Hafnium trifluoromethanesulfonate (Hf(OTf)4) as an efficient catalyst in the fries rearrangement and direct acylation of phenol and naphthol derivatives

被引：58

作者：

Kobayashi, S

Moriwaki, M

Hachiya, I

机构：

[1] Department of Applied Chemistry, Faculty of Science, Science University of Tokyo (SUT), Tokyo 162, Kagurazaka, Shinjuku-ku

来源：

TETRAHEDRON LETTERS | 1996年 / 37卷 / 12期

关键词：

D O I：

10.1016/0040-4039(96)00216-X

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Hafnium trifluoromethanesulfonate (hafnium triflate, Hf(OTf)(4)) was found to be an efficient catalyst in the Fries rearrangement of acyloxy benzene or naphthalene derivatives. The reactions proceeded smoothly in the presence of 5-20 mol% Hf(OTf)(4). Regioselective direct acylation of phenol and naphthol derivatives with acid chlorides was also achieved by using Hf(OTf)(4) as a catalyst.

引用

页码：2053 / 2056

页数：4

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