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Li Hong WANG, Liang HUANG. Study on the Intramolecular Cyclization through Opening of Epoxide Ⅳ. Cyclization of N-Methyl-N-benzoylmethylene β-Methyl-α, β-epoxypropionamide in Aprotic and Protic Solvents[J]. Chinese Chemical Letters,
;2006, 17(4): 457-460.
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Intramolecular cyclization of β-methyl substituted epoxide under aprotics (e.g. LDA in benzene) and protic conditions (e.g. LiOH in MeOH/H2O)both gave a mixture of β-, γ-, δ- and ε-lactam but in different ratio.
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Keywords:
- Ring closure,
- epoxide,
- clausenamide
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