共 17 条
A novel synthesis of carboxylic acid derivatives having a quaternary carbon at 3-position and functional groups at 4-position from 1-chlorovinyl p-tolyl sulfoxides and acetic acid esters
被引:15
|作者:
Satoh, T
[1
]
Sugiyama, S
[1
]
Ota, H
[1
]
机构:
[1] Sci Univ Tokyo, Fac Sci, Dept Chem, Shinjuku Ku, Tokyo 1628601, Japan
关键词:
carboxylic acid;
spiro-lactone;
quaternary carbon;
sulfoxide;
1-chlorovinyl aryl sulfoxide;
D O I:
10.1016/S0040-4039(02)00414-8
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
Addition of the lithium enolate of acetic acid esters to 1-chlorovinyl p-tolyl sulfoxides, which were derived from ketones and chloromethyl p-tolyl sulfoxide in three steps in good yields. gave carboxylic acid esters having a quaternary carbon at the 3-position, and chlorine and sulfinyl groups at the 4-position in high yields. Various kinds of functionalized carboxylic acid derivatives, including spiro-lactones, were derived from the adducts in good to high yields. (C) 2002 Elsevier Science Ltd. All rights reserved.
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页码:3033 / 3036
页数:4
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