Method for preparing derivatives of ascorbic acid

Details Method for preparing derivatives of ascorbic acid Method for preparing derivatives of ascorbic acid

C - Chemistry, Metallurgy

07

F

C07F 9/655 (2006.01)

Patent

CA 2054743

The invention is concerned with a process for the manufacture of ascorbyl phosphates, namely of phosphates of the formula (see formula I) wherein M k~ denotes a cation, k~ denotes the valency and m denotes the equivalents, with the proviso that the product from k.m = 3, by phosphorylating ascorbic acid. k is 1 to 3, especially 1 or 2. The process comprises using pre-formed sodium (or potassium) dichlorophosphate as the phosphorylating reagent, adding ascorbic acid to this pre-formed phosphorylating reagent in aqueous solution, especially at pH values between about 11.0 and about 13.0, in the presence of a water-soluble trialkylamine as the catalyst and at temperatures between about +10°C and about -8°C, especially at temperatures below 0°C, and, if desired, trans-salting the I which is obtained as the sodium (or potassium) salt and/or, if desired, purifying via an amine salt.

Affiliated with

Also associated with

Rating

Method for preparing derivatives of ascorbic 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 Method for preparing derivatives of ascorbic acid, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for preparing derivatives of ascorbic acid will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1781250