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Synthesis 1992; 1992(9): 852-858
DOI: 10.1055/s-1992-26246
DOI: 10.1055/s-1992-26246
paper
© 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.
2,2-Dimethyl-1,3-oxathiane 3,3-Dioxide: A γ-Hydroxypropyl Anion Equivalent
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Publikationsverlauf
Publikationsdatum:
17. September 2002 (online)
The reaction of 4-lithio-2,2-dimethyl-1,3-oxathiane 3,3-dioxide with various electrophiles is presented. Acylation of the anion provided labile 4-acyl-2, 2-dimethyl-1,3-oxathiane 3,3-dioxides which underwent desulfonation with silica gel to produce γ-hydroxy ketones with three carbon unit elongation. Thus, 4-lithio-2,2-dimethyl-1,3-oxathiane 3,3-dioxide was shown to be a useful synthetic equivalent of a γ-hydroxypropyl anion. Methyl esters proved to be the best acylating agents in this reaction. Synthetic utility of this carbon chain elongation was illustrated by the syntheses of dl-lanceol and dl-dihydrojasmone.