Title:
反応媒体として圧縮二酸化炭素中における二官能性または多官能性基質の選択的オレフィンメタセシス
Document Type and Number:
Japanese Patent JP4065573
Kind Code:
B2
Abstract:
Cyclic products are prepared by selective olefin metathesis of bifunctional or polyfunctional substrates in the presence of one or several homogeneous or heterogeneous metathesis catalysts in a reaction medium. The invention is characterized in that the substrates contain two or more functional groups in the form of substituted or non-substituted alkene or alkyne units and in that the reaction medium essentially consists of compressed carbon dioxide. Also disclosed is the preparation of cyclic or polymer products according to the disclosed process, the reaction temperature and total pressure being matched to ensure that the density of the reaction medium lies in a range d=0.2-1.5 g.cm-3 and that the product distribution is essentially controlled by the reaction medium density.
Inventors:
Furstner, Alois
Lightner, butter
Daniel Koch
Langemann, Claus
Zix, christian
Lightner, butter
Daniel Koch
Langemann, Claus
Zix, christian
Application Number:
JP54492198A
Publication Date:
March 26, 2008
Filing Date:
April 04, 1998
Export Citation:
Assignee:
Boehringer Ingelheim International GmbH
International Classes:
B01J31/22; C07B37/10; C07B61/00; C07C29/00; C07C35/21; C07C45/67; C07C49/307; C07C49/607; C07D207/20; C07D207/48; C07D267/00; C07D307/28; C07D313/00; C07D315/00; C07D321/00; C08F4/72; C08G61/08
Foreign References:
| WO1996004289A1 | ||||
| WO1996032421A1 | ||||
| WO1996001850A1 |
Other References:
Journal of Organic Chemistry, 1996年, Vol.61, No.3, p.1073-1081
Attorney, Agent or Firm:
Aoyama Aoi
Mitsuo Tanaka
Tadayuki Motoyama
Kenji Tomita
Mitsuo Tanaka
Tadayuki Motoyama
Kenji Tomita