An entirely new methodology for synthesizing perfluorinated compounds: synthesis of perfluoroalkanesulfonyl fluorides from non-fluorinated compounds

被引:10
|
作者
Okazoe, T [1 ]
Murotani, E [1 ]
Watanabe, K [1 ]
Itoh, M [1 ]
Shirakawa, D [1 ]
Kawahara, K [1 ]
Kaneko, I [1 ]
Tatematsu, S [1 ]
机构
[1] Asahi Glass Co Ltd, Res Ctr, Kanagawa Ku, Yokohama, Kanagawa 2218755, Japan
关键词
alkanesulfonyl fluorides; acyl fluorides; direct fluorination; fluorine; ion exchange; PERFECT process; bond cleavage;
D O I
10.1016/j.jfluchem.2004.09.024
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
A new synthetic procedure for the preparation of perfluoroalkanesulfonyl fluorides utilizing liquid-phase direct fluorination with elemental fluorine has been developed. Direct fluorination of a partially fluorinated ester, which has alkanesulfonyl fluoride in the end, was synthesized from non-fluorinated counterparts and perfluorinated acid fluoride according to the PERFECT process, gave the desired perfluorinated product in moderate yield as well as by-products arising from C-S bond cleavage. The results of the direct fluorination of some model substrates suggest that the C-S bond cleavage occurred due to radical formation at the alpha-position rather than the beta-position. (C) 2004 Elsevier B.V. All rights reserved.
引用
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页码:1695 / 1701
页数:7
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