Ytterbium triflate mediated selective deprotection of acetates

被引：31

作者：

Sharma, GVM ^{[1
]}

Ilangovan, A ^{[1
]}

机构：

[1] Indian Inst Chem Technol, Div Organ Chem 3, Discovery Lab, Hyderabad 500007, Andhra Pradesh, India

来源：

SYNLETT | 1999年 / 12期

关键词：

ytterbium triflate; deacetylation; alcohols; Fries migration;

D O I：

10.1055/s-1999-2975

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Ytterbium triflate mediated selective deprotection of acetates in isopropyl alcohol at reflux temperature is reported. Unlike hafnium triflate, under the present reaction conditions aryl acetates also undergo deacetylation instead of Fries migration.

引用

页码：1963 / 1965

页数：3

共 6 条

[1] BAPTISTELLA LHB, 1989, SYNTHESIS-STUTTGART, P436
[2] GREENE TW, 1991, PROTECTIVE GROUPS OR
[3] Ytterbium(III) triflate-catalyzed selective methanolysis of methoxyacetates: A new deprotective method
Hanamoto, T
Sugimoto, Y
Yokoyama, Y
Inanaga, J
[J]. JOURNAL OF ORGANIC CHEMISTRY, 1996, 61 (13) : 4491 - 4492
[4] Hafnium trifluoromethanesulfonate (Hf(OTf)4) as an efficient catalyst in the fries rearrangement and direct acylation of phenol and naphthol derivatives
Kobayashi, S
Moriwaki, M
Hachiya, I
[J]. TETRAHEDRON LETTERS, 1996, 37 (12) : 2053 - 2056
[5] MARSHMAN RW, 1995, ALDRICHIM ACTA, V28, P77
[6] A mild and highly selective deprotective method of prenyl ethers using ytterbium triflate
Sharma, GVM
Ilangovan, A
Mahalingam, AK
[J]. JOURNAL OF ORGANIC CHEMISTRY, 1998, 63 (24) : 9103 - 9104

← 1 →