Synthesis of N,3,4-trisubstituted-3-azoline-2-ones

Details Synthesis of N,3,4-trisubstituted-3-azoline-2-ones Synthesis of N,3,4-trisubstituted-3-azoline-2-ones

1990-01-24

1991-06-04

Springer, David B.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D20738

Patent

active

050215876

ABSTRACT:
N,3,4-trisubstituted-3-azoline-2-ones (such as N-benzyl-3,4-dimethyl-3-azoline-2-one) are prepared by the reaction of an alkyl 2-chloro-2,3-disubstituted-3-butenoate (such as ethyl 2-chloro-2,3-dimethyl-3-butenoate) with a primary amine (such as benzyl amine). Methods for preparing the precursor esters are also disclosed.

REFERENCES:
patent: 3272842 (1966-09-01), Easton et al.
patent: 3452015 (1969-06-01), Dillard et al.

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