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Some stereochemical implications of a bi-functional wittig reaction

โœ Scribed by H. Heitman; U.K. Pandit; H.O. Huisman

Book ID
118549930
Publisher
Elsevier Science
Year
1963
Tongue
French
Weight
250 KB
Volume
4
Category
Article
ISSN
0040-4039

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The reaction of aldehydes with oxido ylides shows a dramatic dependence of alkene stereochemistry on the distance between oxygen and phosphorus atoms; ylides with proximal 0 and P atoms favor production of g alkenes. The high r stereoselectivity with r-oxido ylides is not mainly attributable to intr