作者:Akihiko Ishii、Kazuyo Umezawa、Juzo Nakayama
DOI:10.1016/s0040-4039(97)00040-3
日期:1997.2
Treatment of 1,5-di-t-butyl-2,2,4,4-tetramethyl-6,7-dithiabicyclo[3.1.1]heptane (10) with 2KHSO(5) . KHSO4 . R(2)SO(4) in dichloromethane-water at room temperature gave the 3,3-dialkyldithiirane 6 as an orange oil. Oxidation of 6 gave a 1:1 mixture of the corresponding (1RS, 3SR)- (13) and (1RS, 3RS)- (14) dithiirane 1-oxides. Thermal reaction of the dithiirane 6 yielded the corresponding 8-oxa-6,7-dithiabicyclo[3.2.1]octane derivative Is as the main product. (C) 1997 Elsevier Science Ltd.