Answers are grounded in this paper and cite their sources.
Isocyanates, isothiocyanates, and carbodiimides are effective substrates in (3 + 2) cycloadditions with donor-acceptor cyclopropanes for the synthesis of five-membered heterocycles. These reactions exhibit a broad substrate scope, high yields, and well-defined chemoselectivity. Discussed herein are the implications of Lewis acid choice on the stereochemical outcome and the reaction mechanism.
No takes yet. Share an insight, caveat, or question.
Goldberg et al. (2012) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: