公开(公告)号：US3681422A

公开(公告)日：1972-08-01

申请号：US3681422D

申请日：1970-08-31

Applicant: HOECHST AG

Inventor： SCHERER OTTO ,  HAHNLE REINHARD ,  SCHNEIDER GUNTER

IPC: C07C275/30 ,  C07C275/64 ,  C07C119/00

CPC classification number: C07C275/30 ,  C07C275/64

Abstract: General 3-difluorochloromethylaryl ureas of the general formula

ARE USEFUL AS HERBICIDES.

Abstract translation: 通用的3-二氟氯甲基芳基脲，通式为有机除草剂。

公开(公告)号：US3647813A

公开(公告)日：1972-03-07

申请号：US3647813D

申请日：1970-03-10

Applicant: HOECHST AG

Inventor： MEININGER FRITZ ,  HAHNLE REINHARD

IPC: C07D263/58 ,  C07D85/28

CPC classification number: C07D263/58

Abstract: A PROCESS FOR THE MANUFACTURE OF A BENZOXAZOLONE-6-BHYDROXYETHYLSULFONE OF THE FORMULA II

2-(O=),6-(HO-CH2-CH2-SO2-),X-2,3-DIHYDROBENZOXAZOLE

IN WHICH X REPRESENTS HYDROGEN, CHLORINE, BROMINE, LOWER ALKYL OR LOWER ALKOXY, WHICH COMPRISES REACTING 1 MOL OR A BENZOXAZALONE-6-SULFINIC ACID OF THE FORMULA III

2-(O=),6-(HO2S-),X-2,3-DIHYDROBENZOXAZOLE

IN WHICH X IS DEFINED AS ABOVE, WITH 1 TO 10 MOL OF ETHYLENE OXIDE IN AQUEOUS MEDIUM AT A PH-RANGE BETWEEN ABOUT 2 AND ABOUT 6 AT A TEMPERTURE RANGE BETWEEN ABOUT 10*C. AND ABOUT 70*C.