Process for purifying aminosulfenylcarbamate derivatives

Details Process for purifying aminosulfenylcarbamate derivatives Process for purifying aminosulfenylcarbamate derivatives

1984-03-02

1985-07-30

Jiles, Henry R.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

544 581, 544 587, 544153, 544158, 546196, 546247, 548525, 548542, 2604533, C07D30786, C07C16100

Patent

active

045323399

ABSTRACT:
A process for purifying an aminosulfenylcarbamate derivative represented by the formula (I) ##STR1## wherein Ar is ##STR2## and R.sup.1 and R.sup.2 are the same or different and are each C.sub.1-8 alkyl, C.sub.3-6 cycloalkyl, benzyl which is unsubstituted or substituted with halogen, C.sub.1-3 alkyl or C.sub.1-3 alkoxy, phenyl which is unsubstituted or substituted with halogen, C.sub.1-3 alkyl or C.sub.1-3 alkoxy, --X--COOR.sup.3 or --Y--CN (in which X and Y are each straight-chain or branched-chain alkylene and R.sup.3 is C.sub.1-8 alkyl or C.sub.3-6 cycloalkyl), R.sup.1 and R.sup.2, when taken together, represent a 5- or 6-membered heterocyclic ring which may contain a sulphur or oxygen atom, the process comprising bringing a solution of the unreacted carbamate-containing aminosulfenylcarbamate derivative of the formula (I) in a water-insoluble organic solvent into contact with an aqueous alkali solution or a mixture of alkali, water and a water-soluble organic solvent. The aminosulfenylcarbamate derivatives are known insecticides.

REFERENCES:
patent: 4006231 (1977-02-01), Black et al.
patent: 4329293 (1982-05-01), Ager et al.
Rizzo, Chem. Abstracts, 6344d, Ger. Offen. 2655212, (1977).

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