1,2,3-thiadiazol-5-yl-urea derivatives having a plant growth-regulating and defoliating action and their manufacture and use

Abstract From the Canadian patent

1,2,3-Thiadiazol-5-yl-urea derivatives having a plant growth-regulating and defoliating action and their manfacture and use, Novel 1,2,3-thiadiazol-5-yl-urea derivatives of the general formula I, (I), (in which R1 represents aromatic hydrocarbon optionally mono-, di- or polysubstituted by Hal and/or Cl-C6-alkyl and/or Cl-C6-alkoxy and/or -NO2 and/or -CF3; and R2 represents E, monovalent metal equivalent optionally sub-, stituted Cl-C6-alkyl, C3-C6-alkenyl or -alkynyl or, -CO-R3 in which R3 represents H, optionally substituted Cl-C10-alkyl, C2-C6-alkenyl or -alkynyl optionally, Cl-C6-akyl-substituted C3-C8 cycloaliphatic hydrocarbon aromatic hydrocarbon optionally mono-, di- or …