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Preparation of cyclic ketones  

  Bibliographic data     Description     Claims     Mosaics     Original document     INPADOC legal status  

Publication number: US5856581 (A)
Publication date: 1999-01-05
Inventor(s): ALAS MICHEL [FR]; CROCHEMORE MICHEL [FR]
Applicant(s): RHONE POULENC CHIMIE [FR]
Classification:  
- international: B01J21/02; B01J23/02; B01J23/08; B01J23/14; B01J23/16; C07B61/00; C07C45/48; C07C49/395; C07C49/403; C07C49/413; C07C49/433; B01J21/00; B01J23/02; B01J23/08; B01J23/14; B01J23/16; C07B61/00; C07C45/00; C07C49/00; (IPC1-7): C07C45/45
- European: C07C45/48
Application number: US19940251112 19940531 
Priority number(s): FR19930006476 19930528
   
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Also published as:
  EP0626363  (A1)  
  EP0626363  (B1)  
  JP7025809  (A)  
  JP7025809  (A)  
  FR2705666  (A1)  
 
Cited documents:
  US4822920 (A)  
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Abstract of US 5856581  (A)
Cyclic ketones, notably cyclopentanone and 2,2-dimethylcyclopentanone, are simply, economically and efficiently prepared, even on an industrial scale, by decarboxylating/cyclizing a dicarboxylic acid, in liquid phase, in the presence of a catalytically effective amount of a metal or compound thereof selected from among boron, aluminum, gallium, indium, thallium, tin, antimony, bismuth, molybdenum, rubidium, cesium and vanadium.
Data supplied from the esp@cenet database — Worldwide