Process for the preparation of alkylphosphonous acid...

Details Process for the preparation of alkylphosphonous acid... Process for the preparation of alkylphosphonous acid...

C - Chemistry, Metallurgy

07

F

260/462

C07F 9/46 (2006.01) C07F 9/48 (2006.01)

Patent

CA 2014002

Process for the preparation of alkylphosphonous acid diesters and/or dialkylphosphinous acid esters The said compounds are prepared by reaction of trialkyl phosphites with phosphorus trichloride and/or dichloro-phosphinous acid monoalkyl esters at -20 to +100°C and direct subsequent reaction with alkylmagnesium chloride or alkylmagnesium bromide at -60 to +50°C and subsequent separation of the desired compounds from the distillate of the volatile compounds. Dialkyl alkylphosphonites and monoalkyl dialkylphosphinites are thus obtained without troublesome and expensive purification of intermediates. The phosphorus-containing esters produced are, for their part, useful intermediates, for example for the preparation of flame retardants and plant protection agents.

Affiliated with

Also associated with

Rating

Process for the preparation of alkylphosphonous acid... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the preparation of alkylphosphonous acid..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of alkylphosphonous acid... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1479094