公开(公告)号：DE59711330D1

公开(公告)日：2004-04-01

申请号：DE59711330

申请日：1997-08-18

Applicant: BASF AG

Inventor： HIEBER DR ,  EBEL DR ,  SCHROEDER DR ,  DOCKNER DR ,  GROENING DR ,  RUGE DR

IPC: C07D233/58 ,  B01J21/12 ,  B01J27/16 ,  C07D233/54 ,  C07D233/68 ,  C07D233/90 ,  C07D233/91 ,  C07D233/92 ,  C07D235/06 ,  C07D235/08

Abstract: Preparation of substituted imidazole derivatives of formula (I) comprises reaction of an imidazole of formula (II) with a compound of formula R4OR5 (III) at 200-550 degrees C in the presence of a catalyst containing oxides or phosphates of one or metals of the 2nd, 3rd and 4th main periods and the 4th transition period, optionally in the presence of phosphoric acid or phosphate esters. R1-R3 = H, halo, NO2, CN or 1-20C hydrocarbon (optionally mono- or poly-halogenated); or R1+R2 complete a 3-20C cyclic hydrocarbon optionally containing 1-3 heteroatoms from N, O or S (optionally mono- to poly-substituted by halo or 1-8C alkyl); R4 = 1-20C hydrocarbon (optionally mono- or poly-halogenated); R5 = R4 or H.