Acyclic Thioacetal and Orthothioformate Anions

Acyclic Thioacetal and Orthothioformate Anions. A number of unusual and synthetically useful ring-forming reactions that are thought to involve thioacetal anions such as (40) and (41) have been reported by Cohen. A procedure 

Pelter, K. Smith, P. Blatcher, and S. Warren, Tetrahedron Lett., 1978,2345. 

Blatcher, J. I. Gtyson, and S. Warren, /. Chem. Soc., Chem. Commun., 1978,657 P. Blatcher and S. Warren, Tetrahedron Lett., 1979,1247. 

Orthothioformate anions have been utilized in the generation of the ester (46) and 1,4-dicarbonyl compounds such as (47). A full report has appeared on the decomposition of orthothioformate anions to bis(arylthio)-carbenes (see also Chap. 1, p. 47). 

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