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New derivatives of ϵ‐caprolactam
Author(s) -
Reimschuessel Herbert K.
Publication year - 1964
Publication title -
journal of heterocyclic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.321
H-Index - 59
eISSN - 1943-5193
pISSN - 0022-152X
DOI - 10.1002/jhet.5570010409
Subject(s) - chemistry , diethyl malonate , caprolactam , mannich reaction , hydrolysis , derivative (finance) , malonate , organic chemistry , condensation , benzimidazole , catalysis , physics , financial economics , economics , thermodynamics
The synthesis of α ‐ (carbethoxyvinyl)caprolactam (V) is reported. This synthesis involves condensation of α‐bromocaprolactam with diethyl malonate, semi‐hydrolysis of the malonic ester derivative, and a Mannich reaction on the product of the latter reaction. All of the intermediate compounds and some of the by‐products are new derivatives of ϵ‐caprolactam. Their infrared and n.m.r. spectra are recorded.