In the present research was made a study of the reactions of [tris(methylthio)methyl]lithium (6) with representative aromatic and aliphatic acyl chlorides 2, anhydrides 3, thiol esters 4, and N,N-dimethylamides 5 for use as starting compounds, alternative to esters 1, for the preparation of trimethyl R-keto trithioortoesters 8 and dimethyl R-keto dithioacetals 7 (Scheme 1).
Synthesis of Trimethyl a -Keto Trithioorthoesters and Dimethyl a -Keto Dithioacetals by Reaction of Acyl Chlorides, Anhydrides, Thiol Esters, and N,N-Dimethylamides with [Tris(methylthio)methyl]lithium
DEGANI, Jacopo;DUGHERA, Stefano;FOCHI, Rita;
1996-01-01
Abstract
In the present research was made a study of the reactions of [tris(methylthio)methyl]lithium (6) with representative aromatic and aliphatic acyl chlorides 2, anhydrides 3, thiol esters 4, and N,N-dimethylamides 5 for use as starting compounds, alternative to esters 1, for the preparation of trimethyl R-keto trithioortoesters 8 and dimethyl R-keto dithioacetals 7 (Scheme 1).
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