Subscribe to RSS
Please copy the URL and add it into your RSS Feed Reader.
https://www.thieme-connect.de/rss/thieme/en/10.1055-s-00000083.xml
Synlett 1993; 1993(7): 481-482
DOI: 10.1055/s-1993-22498
DOI: 10.1055/s-1993-22498
letter
© Georg Thieme Verlag, Rüdigerstr. 14, 70469 Stuttgart, Germany. All rights reserved. This journal, including all individual contributions and illustrations published therein, is legally protected by copyright for the duration of the copyright period. Any use, exploitation or commercialization outside the narrow limits set by copyright legislation, without the publisher's consent, is illegal and liable to criminal prosecution. This applies in particular to photostat reproduction, copying, cyclostyling, mimeographing or duplication of any kind, translating, preparation of microfilms, and electronic data processing and storage.
Synthesis of E-N-Unfunctionalized α,β-Unsaturated Sulfoximines and N-Trifluoromethanesulfonyl Derivatives
Further Information
Publication History
Publication Date:
19 March 2002 (online)
Sequential treatment of the lithio-anion of S -methyl-S-phenyl-N-(trimethylsilyl)sulfoximine 1 with aldehydes and methyl chloroformate gives crude N-(trimethylsilyl)-β-methoxycarbonyl-oxysulfoximines 2, which upon exposure to potassium tert-butoxide and acidic work-up yield geometrically pure N -unfunctionalized α,β-unsaturated sulfoximines 3. Reaction of 3 with trifluoromethanesulfonic anhydride and pyridine gives the N-trifluoromethanesulfonyl derivatives 4.