公开(公告)号：RU2152938C1

公开(公告)日：2000-07-20

申请号：RU93051535

申请日：1991-12-03

Applicant: BASF AG

Inventor： BRENNER KARL ,  GETTS NORBERT ,  KHENKEL MANN JOKHEM ,  KJUKENKHEKHNER TOMAS ,  SHPIGLER VOL FGANG

IPC: B01J23/48 ,  B01J23/72 ,  C07B61/00 ,  C07D309/06

Abstract: chemical industry. SUBSTANCE: described is method of preparing formyltetrahydropyrans of general formula I. Hydroxymethyltetrahydropyran of general formula II is dehydrogenated in the presence of copper, silver and/or gold catalyst. Formyltetrahydropyrans are useful intermediate products for medicinals and plant protection agents. EFFECT: simplified process and greater efficiency thereof. 9 cl, 5 ex