公开(公告)号：US3652581A

公开(公告)日：1972-03-28

申请号：US3652581D

申请日：1968-12-16

Applicant: BASF AG

Inventor： SPAENIG HERMANN ,  STEIMMIG ANNA ,  SAND JAKOB

IPC: C07D49/36 ,  C07D49/38

CPC classification number: C07D235/08

Abstract: PRODUCTION OF IMIDAZOLES SUBSTITUTED ON NITROGEN BY REACTING IMIDAZOLES WITH ALIPHATIC ALCOHOLS OR ETHERS AT 200450*C. IN THE PRESENCE OF, AS CATALYST, ALUMINA, PUMICE OR TITANIUM OXIDE HAVING AT LEAST 5% PHOSPHORIC ACID DEPOSITED THEREON OR ALUMINA IMPREGNATED WITH AT LEAST 5% OF CA(H2PO4)2 OR THORIUM OXIDE IN AN AMOUNT EQUIVALENT TO AT LEAST 5% TH(NO3)4. THE PRODUCTS ARE VALUABLE INTERMEDIATE FOR THE PRODUCTION OF DYES, TEXTILE AUXILIARIES AND INSECTICIDES.