Global Patent Index - EP 0988266 A1

EP 0988266 A1 2000-03-29 - CONTINUOUS METHOD FOR REDUCING CARBONYL COMPOUNDS

Title (en)

CONTINUOUS METHOD FOR REDUCING CARBONYL COMPOUNDS

Title (de)

KONTINUIERLICHES VERFAHREN ZUR REDUKTION VON CARBONYLVERBINDUNGEN

Title (fr)

PROCEDE CONTINU DE REDUCTION DE COMPOSES CARBONYLE

Publication

EP 0988266 A1 (DE)

Application

EP 98936284 A

Priority

  • CH 141497 A
  • EP 9803091 W

Abstract (en)

[origin: WO9856743A1] The invention relates to a continuous method for producing primary or secondary alcohols by reducing the corresponding aldehydes or ketones with a secondary aliphatic alcohol as the hydrogen donor, in the presence of a catalyst. The reduction takes place in the gas phase and an amorphous partially dehydrated zirconium hydroxide is used as the catalyst. The inventive method is also suitable for the selective reduction of alpha , beta -unsaturated aldehydes and ketones. If the reduction is carried out at higher temperatures, the corresponding olefins can be obtained directly from ketones through the dehydration of the resulting secondary alcohols.

IPC 1-7 (main, further and additional classification)

C07C 29/14; C07C 1/22; C07C 15/44; C07C 17/35; C07C 25/02; C07C 29/143; C07C 33/025; C07C 33/20; C07C 33/46; C07D 213/127; C07D 213/30

IPC 8 full level (invention and additional information)

B01J 21/06 (2006.01); C07B 61/00 (2006.01); C07C 1/207 (2006.01); C07C 1/24 (2006.01); C07C 15/44 (2006.01); C07C 15/46 (2006.01); C07C 17/35 (2006.01); C07C 25/28 (2006.01); C07C 29/14 (2006.01); C07C 29/143 (2006.01); C07C 33/03 (2006.01); C07C 33/20 (2006.01); C07C 33/22 (2006.01); C07C 33/46 (2006.01); C07D 213/30 (2006.01)

CPC (invention and additional information)

C07D 213/30 (2013.01); C07C 1/207 (2013.01); C07C 17/35 (2013.01); C07C 29/14 (2013.01); C07C 29/143 (2013.01); C07C 2521/06 (2013.01)

Combination set (CPC)

  1. C07C 1/207 + C07C 15/44
  2. C07C 17/35 + C07C 25/28
  3. C07C 29/14 + C07C 33/20
  4. C07C 29/14 + C07C 33/03
  5. C07C 29/143 + C07C 33/22
  6. C07C 29/143 + C07C 33/20
  7. C07C 29/143 + C07C 33/03
  8. C07C 29/143 + C07C 33/46

Citation (search report)

See references of WO 9856743A1

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB IE IT LI NL PT SE

EPO simple patent family

WO 9856743 A1 19981217; AU 8535098 A 19981230; CA 2290959 A1 19981217; EP 0988266 A1 20000329; JP 2002513420 A 20020508

INPADOC legal status


2002-03-13 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20010818

2001-09-19 [RAP1] TRANSFER OF RIGHTS OF AN EP PUBLISHED APPLICATION

- Owner name: LONZA AG

2001-01-24 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20001207

2000-03-29 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19991117

2000-03-29 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH DE DK ES FI FR GB IE IT LI NL PT SE