Process for producing dimethyl (2,2,2-trichloro-1-hydroxyethyl)-

Details Process for producing dimethyl (2,2,2-trichloro-1-hydroxyethyl)- Process for producing dimethyl (2,2,2-trichloro-1-hydroxyethyl)-

1997-09-29

1999-07-13

Ambrose, Michael G.

Coating processes

Particles, flakes, or granules coated or encapsulated

Inorganic base

427212, 514129, 558135, B05D 700, A61K 3166, C07F 940

Patent

active

059224045

ABSTRACT:
The present invention relates to an integrated process for synthesizing dimethyl (2,2,2-trichloro-1-hydroxyethyl)-phosphonate and a process for impregnating the dimethyl (2,2,2-trichloro-1-hydroxyethyl)-phosphonate on to inert carrier granules. The process involves adding dimethyl phosphite to a reaction mixture containing chloral under anhydrous, inert conditions. The molar ratio of chloral to dimethyl phosphite used in the reaction mixture is from about 1.0:1.0 to about 1.1:1.0. The impregnation process involves transferring molten dimethyl (2,2,2-trichloro-1-hydroxyethyl)-phosphonate into a process vessel and discharging weighed aliquots into a formulation vessel to form a granular product containing dimethyl (2,2,2-trichloro-1-hydroxyethyl)-phosphonate.

REFERENCES:
patent: 5380350 (1995-01-01), Fersch
Database CAPLUS on STN.RTM. International, Chemical Abstracts Service, (Columbus, Ohio), Accession No. 1976:90301; Heidenreich, S. et al., DD 111910, Mar. 12, 1975, abstract.
Database CAPLUS on STN.RTM. International, Chemical Abstracts Service, (Columbus, Ohio), Accession No. 1982:425509; Denisov et al. Khim. Prom-st. (Moscow), (4), 242-3 (1982), abstract.

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