Chemistry of carbon compounds – Dipeptides – e.g. – aspartame – anserine – carnosine – etc.
Patent
1975-04-07
1976-06-22
Raymond, Richard L.
Chemistry of carbon compounds
Dipeptides, e.g., aspartame, anserine, carnosine, etc.
260943, C07F 924
Patent
active
039652181
ABSTRACT:
Compounds of the formula ##EQU1## wherein R.sup.1 and R.sup.2 individually are alkyl or alkenyl; R.sup.4 is hydrogen, alkyl or haloalkyl; R.sup.3 and R.sup.5 are hydrogen or alkyl and R.sup.6 is alkyl, haloalkyl, aryl, alkoxy, aryloxy, alkylthio, or amino are produced by the acid-catalyzed condensation of a 1,3-dicarbonyl compound of the formula ##EQU2## with a phosphoroamidothioate compound of the formula ##EQU3## wherein R.sup.1 and R.sup.6 are as defined above. The compounds are highly active insecticides, with low mammalian toxicity.
REFERENCES:
patent: 3113958 (1963-12-01), Miller et al.
Chevron Research Company
Magdeburger G. F.
Owyang Raymond
Raymond Richard L.
Stoner, Jr. John
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