Facile conversion of sulfilimines info sulfoximines using dioxiranes

被引:15
作者
Gaggero, N
D'Accolti, L
Colonna, S
Curci, R
机构
[1] UNIV MILAN, FAC FARM, CTR CNR, I-20133 MILAN, ITALY
[2] UNIV MILAN, FAC FARM, IST CHIM ORGAN, I-20133 MILAN, ITALY
[3] UNIV BARI, DIPARTMENTO CHIM, CTR CNR, MISO, I-70126 BARI, ITALY
关键词
dioxiranes; sulfilimines; oxidation; sulfoximines;
D O I
10.1016/S0040-4039(97)01243-4
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Employing dimethyldioxirane, the direct conversion of several N-(p-tolylsulfonyl)sulfilimines and of one N-(acetyl)sulfilimine into the corresponding sulfoximines was achieved in high yield under mild conditions. Optically active S-(p-tolyl)-S-methyl-N-(p-tolylsulfonyl)sulfilimine could be transformed into its sulfoximine in high enantiomeric excess with retention of configuration. The effect of substituents indicates that the oxidation involves electrophilic O-transfer from the dioxirane to the sulfilimine sulfur. (C) 1997 Elsevier Science, Ltd.
引用
收藏
页码:5559 / 5562
页数:4
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