Title:
アルミニウム錯体とその使用
Document Type and Number:
Japanese Patent JP5432895
Kind Code:
B2
Abstract:
Provided is a process in which cyclization of a compound having, in a molecule, a formyl group and a double bond which allow carbonyl-ene cyclization, the compound existing as a mixture of optical isomers thereof, increases the ratio of a particular optical isomer not only in a cyclized compound, but also in an unreacted compound. The process comprises performing, in the presence of a specified aluminum complex represented by the general formula: [Al 2 (L 1 ) n (L 2 ) 3-n ]m, cyclization of a compound having, in a molecule, a formyl group and a double bond which allow carbonyl-ene cyclization, the compound existing as a mixture of optical isomers thereof, to increase the ratio of a particular optical isomer.
Inventors:
Ito
Yohori Hori
Yohori Hori
Application Number:
JP2010514357A
Publication Date:
March 05, 2014
Filing Date:
May 25, 2009
Export Citation:
Assignee:
Takasago International Corporation
International Classes:
C07C39/235; B01J31/22; C07C29/56; C07C35/17; C07C39/14; C07C39/15; C07C39/42; C07F5/06; C07B53/00; C07B61/00
Domestic Patent References:
| JPH01230537A | 1989-09-14 |
Foreign References:
| WO2005014509A1 | 2005-02-17 | |||
| US6258960B1 | 2001-07-10 |
Other References:
JPN7013003535; Ｊｏｕｒｎａｌ ｏｆ Ｏｒｇａｎｉｃ Ｃｈｅｍｉｓｔｒｙ ６８（２６）, 2003, ｐｐ． ９９５８-９９６３
JPN7013003536; Ｊｏｕｒｎａｌ ｏｆ ｔｈｅ Ａｍｅｒｉｃａｎ Ｃｈｅｍｉｃａｌ Ｓｏｃｉｅｔｙ １１０（１）, 1988, ｐｐ． ３１０-３１２
JPN7013003536; Ｊｏｕｒｎａｌ ｏｆ ｔｈｅ Ａｍｅｒｉｃａｎ Ｃｈｅｍｉｃａｌ Ｓｏｃｉｅｔｙ １１０（１）, 1988, ｐｐ． ３１０-３１２
Attorney, Agent or Firm:
Ryu Iwatani