Answers are grounded in this paper and cite their sources.
Reaction of dilithiated ethyl thioglycolate with bis(imidoyl chloride)s of oxalic acid afforded the first 2,3-diiminothietanes, which underwent ring expansion reactions upon treatment with ethyl thioglycolate or dimethyl acetylenedicarboxylate.
No takes yet. Share an insight, caveat, or question.
Langer et al. (1999) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: