Title:
ポリメチン系エーテル化合物
Document Type and Number:
Japanese Patent JP4658805
Kind Code:
B2
Abstract:
The invention provides novel compounds useful as intermediates for the production of polymethine compounds containing a desired counter ion with high purity and in high yields. Thus provided are polymethine ether compounds of the general formula (I) given below and a method of producing polymethine compounds which comprises bringing those compounds into contact with an acid.
In the above formula, R represents an alkyl group, an alkoxyalkyl group or an aryl group which may optionally be substituted, R 1 and R 2 each independently represents a hydrogen atom, halogen atom, nitro group, alkyl group, alkoxyalkyl group, alkoxy group or alkoxyalkoxy group and R 1 and R 2 may be bound to each other to form a ring; R 3 represents an alkyl group, which may optionally be substituted; L is an alkylene group required for the formation of a ring structure; and X represents a hydrogen atom, halogen atom, alkoxy group, aryloxy group, alkylthio group, arylthio group or substituted amino group.
Inventors:
Nobuaki Sasaki
Chiseki Ishiki
Sayuri Wada
Shigeo Fujita
Chiseki Ishiki
Sayuri Wada
Shigeo Fujita
Application Number:
JP2005511019A
Publication Date:
March 23, 2011
Filing Date:
June 16, 2004
Export Citation:
Assignee:
Yamamoto Kasei Co., Ltd.
International Classes:
C07D209/34; C07D209/10; C07D209/94; C07D519/00; C09B23/01
Domestic Patent References:
| JP2001064255A | 2001-03-13 | |||
| JP2000226528A | 2000-08-15 | |||
| JP2002052855A | 2002-02-19 |
Foreign References:
| WO2004113453A1 | 2004-12-29 |
Attorney, Agent or Firm:
Hiroshi Morioka