Abstract Anions of t-butylacetothioacetate (1) react with alkylhalides and carbonyl compounds in a regiospecific manner to afford products which are versatile synthetic intermediates as exemplified by short syntheses of the mold metabolites carolic acid (2) and carlosic acid (3).
[Booth, Paul M.; Fox, Christina, M. J.; Ley, Steve V. Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1987 , p. 121 - 130]