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Mechanism of decomposition of sulfonium betaines to epoxides

✍ Scribed by John M. Townsend; K.Barry Sharpless

Book ID: 104245112
Publisher: Elsevier Science
Year: 1972
Tongue: French
Weight: 157 KB
Volume: 13
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(01)94031-6

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## Abstract magnified image Hexaminium salts of 4‐pyrones 3a, 3b were synthesized by treatment of 2‐(4‐bromomethylphenyl)‐6‐methyl‐4__H__‐pyran‐4‐one 2a and 2‐(4‐bromomethylphenyl)‐6‐phenyl‐4__H__‐pyran‐4‐one 2b with hexamethyl‐enetetramine in chloroform in 71 and 84% yields respectively. Hydrolys