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The stereochemistry of the formation of Δ3-1,3,4-thiadiazoline-1-oxides and episulfoxides from sulfines and 2-diazopropane

✍ Scribed by L. Thijs; A. Wagenaar; E.M.M. van Rens; B. Zwanenburg

Book ID
104238312
Publisher
Elsevier Science
Year
1973
Tongue
French
Weight
346 KB
Volume
14
Category
Article
ISSN
0040-4039

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## Abstract magnified image Under acetylating conditions __racemic__ thioflavanone thiosemicarbazones cyclize into __racemic__ 3‐acetyl‐spiro[1,3,4‐thiadiazoline‐2,4′‐thioflavans] and a __racemic__ 3‐acetylspiro[1,3,4‐oxadiazoline‐2,4′‐thioflavan] with __trans__ O(1) or S(1) and Ph(2′~eq~). Hinder