Chemistry of carbon compounds – Dipeptides – e.g. – aspartame – anserine – carnosine – etc.
Patent
1977-04-27
1978-11-21
Sutto, Anton H.
Chemistry of carbon compounds
Dipeptides, e.g., aspartame, anserine, carnosine, etc.
C07F 909
Patent
active
041266501
ABSTRACT:
Mono-alkyl acid phosphates having the formula: ##STR1## wherein R is straight or branched alkyl having from 1 to about 25 carbon atoms, are prepared by reacting alcohol with P.sub.2 O.sub.5. The process involves suspension of P.sub.2 O.sub.5 in a heel of product comprised of a mixture of mono-alkyl acid phosphate, di-alkyl acid phosphate and free H.sub.3 PO.sub.4. Alcohol is added to the heel last, followed by mixing, and then addition of water. A mixture of mono- and dialkyl acid phosphate is obtained with a mono-content of over about 70 percent by weight.
REFERENCES:
patent: 3318982 (1967-05-01), Klose et al.
patent: 3333029 (1967-07-01), Muller-Schiedmayer et al.
Liu Sophia Y.
Via Francis A.
Robinson William R.
Stauffer Chemical Company
Sutto Anton H.
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