Chemistry of carbon compounds – Dipeptides – e.g. – aspartame – anserine – carnosine – etc.
Patent
1978-02-27
1980-02-19
Sutto, Anton H.
Chemistry of carbon compounds
Dipeptides, e.g., aspartame, anserine, carnosine, etc.
260967, C07F 9201
Patent
active
041894537
ABSTRACT:
Trithio- and tetrathiophosphates with mercaptocarboxylic acid derivatives are preeminently suitable as extreme pressure additives for lubricants. They reduce signs of wear and have no or only an insignificant corrosive action on the parts to be protected. They are obtained in high yields, shorter reaction times and relatively free from by-products via the trithiophosphites by reaction of phosphorus trihalides with mercaptans in the presence of a catalyst and subsequent oxidation with sulphur or an oxygen donor.
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Houben-Weyl, vol. 12/2, pp. 93-95, and 742-748.
Schmiermittel Taschenbuch, Huthig Verlag, Heidelberg, 1974, vol. 15, pp. 229-232.
Lorenz Joachim
Maul Rudolf
Otto Eberhard
Zinke Horst
Ciba-Geigy Corporation
Hall Luther A. R.
Sutto Anton H.
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