United States Patent 5,449,812

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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

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

Foreign Patent Documents

0001515	May, 1983	EP
0235449	Sept., 1987	EP
0116518	Oct., 1987	EP

Other References

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.

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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