Isolation and Characterization of an Allenylthioketene and 4-Methylenecyclobutenethiones Generated by Thermal Reaction of Alkynyl Propargyl Sulfides
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Alkynyl propargyl sulfides underwent [3,3] sigmatropic rearrangement followed by ring closure to afford isolable 4-methylenecyclobutenethiones, and an intermediary allenylthioketene <B>2</B> was isolated by heating <I>t</I>-butyldimethylsilylethynyl propargyl sulfide.
- Chemistry Letters
Chemistry Letters 35(9), 992-993, 2006-09-05
The Chemical Society of Japan