Intermediates for the preparation of phenylsulfonylurea herbicid

Details Intermediates for the preparation of phenylsulfonylurea herbicid Intermediates for the preparation of phenylsulfonylurea herbicid

1993-10-28

1995-09-12

Raymond, Richard L.

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

Organic compounds

Carboxylic acid esters

558230, 558234, 558235, 558241, 558257, 564 26, 564 49, 564 74, 564 79, 564 83, 564 85, 564 86, C07C31138

Patent

active

054498120

ABSTRACT:
The compounds of the formula (I) ##STR1## in which R.sup.1 -R.sup.4, W, X, Y and Z are as defined in claim 1 are suitable for controlling harmful plants in crops. Their preparation may employ the intermediates of the formulae II and III: ##STR2##

REFERENCES:
patent: 4632695 (1986-12-01), Schurter et al.
patent: 4664695 (1987-05-01), Schurter et al.
patent: 4892946 (1990-01-01), Levitt
patent: 4981509 (1991-01-01), Hillemann
Loev et al, J. Org. Chem., vol. 27 (1962) pp. 2177-2180.
Langmuir, "Formation of Langmuir-Blodgett Films of a Fullerene", 1992, vol. 8, pp. 4-6.

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