Wittig condensations of a thietan -2-one with stabilised phosphoranes
- 1 January 1982
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of the Chemical Society, Chemical Communications
- No. 17,p. 995-996
- https://doi.org/10.1039/c39820000995
Abstract
(3R)-3-Benzyloxycarbonylamino-4,4-dimethylthietan-2-one reacts with ethoxycarbonylmethylenetriphenyl-phosphorane to give (3R)-3-benzyloxycarbonylamino-2-ethoxycarbonylmethylene-4,4,-dimethylthietan, as a mixture of (E)-and (Z)-diastereoisomers; corresponding Witting condensations occur with cyanomethylene-and acetonylidene-triphenylphosphorane.Keywords
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