Asymmetric synthesis of α-monofluoromethyl- and α-difluoromethylbenzylamines through regioselective hydrogenolysis

被引:14
作者
Kanai, M [1 ]
Ueda, K
Yasumoto, M
Kuriyama, Y
Inomiya, K
Ootsuka, T
Katsuhara, Y
Higashiyama, K
Ishii, A
机构
[1] Cent Glass Co Ltd, Chem Res Ctr, Kawagoe, Saitama 3501151, Japan
[2] Hoshi Univ, Fac Pharmaceut Sci, Tokyo 1428501, Japan
关键词
asymmetric synthesis; alpha-monofluoromethylbenzylamine; alpha-difluoromethylbenzylamine; regioselective hydrogenolysis; diastereomerically pure bis(alpha-methylbenzyl)amine derivative; partially fluorinated methyl group; opposite asymmetric induction;
D O I
10.1016/j.jfluchem.2005.01.009
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Asymmetric synthesis of alpha-monofluoromethyl- and alpha-difluoromethylbenzylamines through regioselective hydrogenolysis is described. Hydrogenolysis of diastereomerically pure bis(alpha-methylbenzyl)amine derivatives having partially fluorinated methyl group at benzylic position also proceeded with a high regioselectivity as well as in the case of alpha-trifluoromethyl group. Moreover, opposite asymmetric induction was observed in reduction of chiral imines derived from partially fluorinated acetophenone and alpha-phenylethylamine. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:377 / 383
页数:7
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