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.
Abstract:
Compounds are prepared having one of the formulae ##STR1## where n is an integer of 1, 2 or 3 and R.sub.1, R.sub.2 and R.sub.3 are hydrocarbyl or halohydrocarbyl. The compounds are useful as stabilizers for olefin polymers.
Abstract:
A method of stabilizing organothiophosphorus compounds against odor development which comprises mixing said organothiophosphorus compounds with appropriate amounts of a suitable anhydride. Mixtures thereof have an acceptable or pleasant odor and are suitable for use as pesticidal or plant growth regulant compositions.
(2) FIG-01 WHERE R IS ALKYL OR 1 TO 20 CARBON ATOMS, PHENYL ALKYL PHENYL HAVING UP TO 4 CARBON ATOMS IN THE ALKYL GROUP, NAPHTHYL CYCLOHEXYL OR BENZYL, OR (-CH2)NCOOR3 WHERE R3 IS ALKYL OR 1 TO 20 CARBON ATOMS. CYCLOHEXYL, PHENYL, TOLYL NAPHTHYL OR BENZYL, N IS 1 OR 2, O IS 2 TO 4, M IS 0 TO 8 AND R1 AND R2 ARE ZERO, HYDROGEN OR LOWER ALKYL.
Abstract:
Un método para la preparación de ésteres de tiofosfito de fórmula en que el método comprenda los pasos de: (a) la formación de una mezcla de reacción de un éster de fosfonoformato de fórmula una cantidad efectiva de pentasulfuro de fósforo, y un disolvente adecuado, dónde R1, R2 y R3 son cada uno alquilo, alquenilo, alquinilo, o arilo sustituido o insustituido o un grupo protector adecuado; y (b) el calentamiento de dicha mezcla de reacción a una temperatura adecuada hasta que la conversión del éster de fosfonoformato (4) a éster de tiofosfonoformato (3) sea sustancialmente completa.