Production of substituted phenylurea

Details Production of substituted phenylurea Production of substituted phenylurea

1979-02-21

1981-04-21

Waltz, Thomas A.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

71120, 2605005H, 260453AR, 564 52, 564219, 564305, C07C 6976

Patent

active

042632196

ABSTRACT:
A compound of the formula: ##STR1## which is useful as a herbicide, is effectively produced by reacting a compound of the formula: ##STR2## with dimethyl sulfate in a two phase reaction medium consisting of water and a hydrophobic organic solvent in the presence of a phase transfer catalyst, or produced through a novel intermediate of the formula: ##STR3##

REFERENCES:
patent: 3024283 (1962-03-01), Metcalfe et al.
patent: 3992432 (1976-11-01), Napier et al.
patent: 4004907 (1977-01-01), Schmid
patent: 4087272 (1978-05-01), Rohe et al.
patent: 4123256 (1978-10-01), Yoshida et al.
patent: 4129436 (1978-12-01), Takemoto et al.
patent: 4144049 (1979-03-01), Yoshida et al.

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