Process to 5-methyleneoxazolines

Details Process to 5-methyleneoxazolines Process to 5-methyleneoxazolines

1998-05-15

2000-11-14

Raymond, Richard L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548235, 548237, 548238, 5462714, 544182, 544216, 544238, 544335, 544336, C07D26308, C07D41302

Patent

active

061472204

ABSTRACT:
This invention provides a process for the preparation of a 5-methylene-1,3-oxazoline from an alkyl ketone by reacting the alkyl ketone with an acetylating agent and an acid catalyst in an appropriate solvent and at an appropriate temperature. The resulting 5-methylene-1,3-oxazoline can be chlorinated and subsequently hydrolyzed to form an .alpha.-chloroketone which is useful as a fungicide.

REFERENCES:
patent: 5936096 (1999-08-01), Rayle et al.
Transformations of the Herbicide N-(1,1-dimethylpropynyl)-3,5-dichlorobenzamide in Soil, Roy Y. Yih, et al., Weed Science, vol. 18, Issue 5 (Sep.), 1970, pp. 604-607.
Identification of Metabolites of N-(1,1-dimethylpropynyl)-3,5-dichlorobenzamide in Soil and Alfalfa, Roy Y. Yih, et al., J. Arg. Food Chem., vol. 19, No. 2, 1971, pp. 314-319.

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