Process for the preparation of sulfonylureas

Details Process for the preparation of sulfonylureas Process for the preparation of sulfonylureas

1995-02-07

1996-10-29

Ford, John M.

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

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

544211, 544210, 544208, 544205, 544206, 544199, 544197, 544332, 544323, 544321, 544320, C07D23969, C07D23942, C07D25142, C07D25148

Patent

active

055697615

ABSTRACT:
Process for the preparation of sulfonylureas
Herbicidal sulfonylureas of the formula I, ##STR1## in which X is --O--, --0--NR.sup.2 -- or --SO.sub.2 --NR.sup.2 --, Y is --N-- or CH,

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patent: 4191533 (1980-03-01), Bohn et al.
patent: 4515620 (1985-05-01), Bohner
patent: 4600792 (1986-07-01), Shiokawa et al.
patent: 4601747 (1986-07-01), Willms et al.
patent: 4963180 (1990-10-01), Willms et al.
patent: 5104443 (1992-04-01), Kehne et al.
M. I. R. Hedayatullah et al., Phosphorus, Sulfur and Silicon, 1991, vol. 61, pp. 19-25.
R. Graf, Chemische Berichte, vol. 96, pp. 56-67 (1963).

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