Silver‐Catalyzed Rearrangement of Propargylic Sulfinates to Allenic Sulfones

Abstract

Treatment of propargylic sulfinate esters with 2 mol % of silver hexafluoroantimonate results in the rapid formation of allenic sulfones in essentially quantitative yield.

Direct Sulfination of Nonactivated Alcohols with Arylsulfonylmethyl Isocyanides

“…On the other hand, sulfinates are useful and versatile synthetic intermediates for the syntheses of many natural products and biologically active compounds including sulfones, sulfoxides, sulfonamides, etc . Besides, sulfinates are promising probes for highly selective thiol bioimaging .…”

The Synthesis of N-TBS-S-Alkynyl Sulfoximines

“…12 We first synthesized b-keto sulfoximines using the method of Cinquini and co-workers. 13 Sulfoximine 9 was prepared by known methods.…”

Sigmatropic Rearrangements and Related Processes Promoted by Silver

“…77 The substitution pattern in the product obtained through this sequence was in agreement with the proposed mechanism (Table 3.7). 78 Yields were usually better with the more substituted tert -butyl diazoacetate.…”