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Cyanoketenes. Cycloadditions of chlorocyanoketene to α,β-unsaturated imines
Abstract
Chlorocyanoketene cycloadds to cinnamylideneamines to give β-lactams, δ-lactams, and pyridones. The periselectivity and stereoselectivity of these cycloadditions is markedly influenced by the N-substituent as well as the βsubstituents of the imines. © 1982.
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