公开(公告)号：US3842098A

公开(公告)日：1974-10-15

申请号：US32311873

申请日：1973-01-12

Applicant: BAYER AG

Inventor： SCHERHAG B ,  WOLZ H ,  FRANCQUE M

IPC: C07D235/28 ,  C07D49/38

CPC classification number: C07D235/28

Abstract: 1. A PROCESS FOR PRODUCING HIGH PURITY 2-MERCAPTOBENZIMIDAZOLE WHICH COMPRISES REACTING O-PHENYLENE DIAMIE WITH CARBON DISULFIDE IN BENZOTHIAZOLE OR IN ALKYLBENZOTHIAZOLE HAVING FROM 1 TO 4 CARBON ATOMS IN THE ALKYL MOIETY, EXTRACTING RESULTING 2-MERCAPTOBENZIMIDAZOLE CONTAINING SOLUTION WIWITH DILUTE AQUEOUS ALKALI METAL HYDROXIDE SOLUTION, PRECIPITATING EXTRACTED 2-MERCAPTOBENZIMIDTHIAZOLE FROM RESULTING AQUEOUS ALKALI METAL HYDROXIDE SOLUTION CONTAINING THE SAME BY ACIDIFICATION AND RECOVERING PRECIPITATED 2-MERCAPTOBENZIMIDAZOLE.

公开(公告)号：US3821204A

公开(公告)日：1974-06-28

申请号：US18161371

申请日：1971-09-17

Applicant: BAYER AG

Inventor： ENDERS E ,  STENDEL W ,  MEIER J ,  FRANCQUE M

IPC: A01N43/36 ,  A01P7/04 ,  C07D207/22 ,  C07D27/04

CPC classification number: C07D207/22 ,  Y10T70/7062

Abstract: 2-Phenyliminopyrrolidines of the formula:

OR SALTS THEREOF, WHEREIN R1 is halogen, R2 is hydrogen, halogen, alkyl of 1 to 6 carbon atoms, difluoromethyl or trifluoromethyl, R3 is hydrogen or alkyl, preferably lower alkyl, N IS AN INTEGER FROM 1 TO 4, AND A, B and C each represent hydrogen, alkyl of 1 to 6 carbon atoms, alkenyl of 2 to 6 carbon atoms, or A and B, or B and C are linked to each other to form a ring, provided that at least one of A, B and C is alkyl or alkenyl, ARE USEFUL AS ACARICIDES.