N-Vinyl as N-H protecting group. Synthesis of cyclic imines from N-vinyllactams and organolithium reagents |
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Authors: | Jacek Bielawski Svante Brandnge Lars Lindblom |
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Institution: | Jacek Bielawski,Svante Brandänge,Lars Lindblom |
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Abstract: | On reaction with organolithium reagents followed by hydrolysis and distillation, N-vinylpyrrolidone ( 1 ) gives five-membered ring imines 3-8 , whereas N-vinylcaprolactam ( 2 ) gives mixtures of seven-membered ring imines and the corresponding ∈-amino ketones. |
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