公开(公告)号：US3896142A

公开(公告)日：1975-07-22

申请号：US40540073

申请日：1973-10-11

Applicant: HOECHST AG

Inventor： DRANSCH GUNTHER ,  HORLEIN GERHARD

IPC: C07D233/48 ,  C07D235/32 ,  C07D49/38

CPC classification number: C07D235/32

Abstract: A process for the preparation of 2-benzimidazole-carbamic acid alkyl and benzyl esters or the salts thereof, which comprises converting 2-amino-benzimidazoles with bases to their alkali metal or alkaline earth metal salts reacting these compounds with carbonic acid dialkyl or dibenzyl esters with exclusion of water, and optionally converting the 2-benzimidazole carbamate salts obtained to the free 2-benzimidazole-carbamic acid esters by acidification.

公开(公告)号：US3887576A

公开(公告)日：1975-06-03

申请号：US34176073

申请日：1973-03-15

Applicant: HOECHST AG

Inventor： DRANSCH GUNTHER ,  HARTEL KURT ,  HORLEIN GERHARD ,  SCHONOWSKY HUBERT ,  STUDENEER ADOLF

IPC: A01N47/38 ,  C07D235/32 ,  C07D49/38

CPC classification number: C07D235/32 ,  C07C323/00

Abstract: Substituted benzimidazoles of the formula

IN WHICH R1 is alkyl, X is oxygen or sulfur, R2 is haloalkyl or haloalkenyl and R3, R4 and R5 each are hydrogen, halogen or alkyl, are valuable as systemic fungicides and as anthelmintic agents.

Abstract translation: 式I的取代的苯并咪唑R1是烷基，X是氧或硫，R2是卤代烷基或卤代烯基，R3，R4和R5各自是氢，卤素或烷基，作为系统性杀真菌剂和作为驱肠剂是有价值的。