Process for the preparation of O-substituted oximes

Details Process for the preparation of O-substituted oximes Process for the preparation of O-substituted oximes

1994-11-03

1995-07-18

O'Sullivan, Peter

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

Organic compounds

Amino nitrogen containing

564257, C07C24904

Patent

active

054343062

ABSTRACT:
The invention relates to a process for the hydroxyalkylation of aldoximes and ketoximes by reacting said oximes with unsubstituted or substituted ethylene or propylene carbonate in the presence of a catalyst, which comprises the use of catalytic amounts of a N-alkylated, stable, organic amidinc base or a pyridine which is substituted by a secondary amino group. The compounds are important intermediates for the synthesis of herbicides.

REFERENCES:
patent: 4545807 (1985-10-01), Frater et al.
patent: 4687849 (1987-08-01), Frater et al.
Mong et al. "Synthesis of Polyurethanes Derived from Oximes and Their Photodegradation", Journal of Polymer Science Polymer Chemistry Ed., vol. 10, 3405-3419 (1972).
R. Klavser et al., ACS Symposium Ser., 1991, Synth. Chem. Agrochem. 2, 443, pp. 226-235.

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