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United States Patent 5,449,812
Schnabel, et. al.Sept. 12, 1995

Intermediates for the preparation of phenylsulfonylurea herbicides and plant growth regulators

Inventors: Schnabel; Gerhard (Grosswallstadt, DE); Willms; Lothar (Hillscheid, DE); Bauer; Klaus (Hanau, DE); Bieringer; Hermann (Eppstein/Taunus, DE).
Assignee: Hoechst Aktiengesellschaft (Frankfurt, DE).
Appl. No.: 144,895
Filed: Oct. 28, 1993

Foreign Application Priority Data
Oct. 31, 1992 [DE]42 36 902.9
Intl. Cl.:C07C 311/38
U.S. Cl.:560/ 13; 558/230; 558/234; 558/235; 558/241; 558/257; 564/ 26; 564/ 49; 564/ 74; 564/ 79; 564/ 83; 564/ 85; 564/ 86
Field of Search:564/26, 49, 74, 79, 83, 85, 86; 560/13; 558/230, 234, 235, 241, 257

References Cited

U.S. Patent Documents
4,632,695Dec., 1986Schurter et al. 544/211 X
4,664,695May, 1987Schurter et al. 71/ 92
4,892,946Jan., 1990Levitt 544/321
4,981,509Jan., 1991Hillemann 544/211 X

Foreign Patent Documents
0001515May, 1983EP
0235449Sept., 1987EP
0116518Oct., 1987EP

Other References

Primary Examiner: Raymond; Richard L.
Attorney, Agent or Firm: Curtis, Morris & Safford

Abstract

The compounds of the formula (I) ##STR1## in which R(^1) -R(^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##

7 Claims, No Drawings


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