Process for preparing N-sulphonyl-ureas

Organic compounds -- part of the class 532-570 series – Organic compounds – Four or more ring nitrogens in the bicyclo ring system

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544212, 544209, 544207, 544206, 544198, 544197, 544300, 544301, 544310, 544311, 544316, 544317, 546284, 546307, 546308, 546309, 546291, 546292, 546293, 546306, 564 39, 564 40, 564 42, 564 43, 544319, 544320, 544321, 544323, 544324, 544327, 544331, 544332, 544322, 544208, 558 61, 549 61, 549 62, 549 64, 549 65, C07D25142, C07D23969, C07D23942, C07D21375

Patent

active

049546287

ABSTRACT:
The invention relates to a process for preparing sulphonyl-ureas of the general formula (I) ##STR1## wherein Ar.sub.1 represents a phenyl, naphthyl or thienyl group, the derivatives thereof substituted by C.sub.1-4 alkyl, C.sub.1-4 haloalkyl, (halo)alkoxycarbonyl, (halo)alkyloxy, nitro, cyano groups as well as by halogen atoms,

REFERENCES:
patent: 4534790 (1985-08-01), Wolf

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