Title:
【発明の名称】光学活性なクロマン―2―エタノール誘導体の製造方法およびその中間体
Document Type and Number:
Japanese Patent JP3029840
Kind Code:
B2
Abstract:
An optically active (S)- or (R)-chroman-2-ethanol compound of the general formula (I) wherein R1, R2 and R3 independently represent a hydrogen atom or a lower alkyl group having 1 to 4 carbon atoms, and the chiral central carbon atom marked with a symbol * in the formula (I) alternatively has one of an R-configuration and an S-configuration, is disclosed. Further, intermediate products of the compound of the formula (I) are also disclosed. Still further, a process for manufacturing the above compounds is disclosed. The compound of the formula (I) is easily synthesized from an easily available optically active starting material.
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Inventors:
Seiichi Takano
Kunio Ogasawara
Kunio Ogasawara
Application Number:
JP915790A
Publication Date:
April 10, 2000
Filing Date:
January 18, 1990
Export Citation:
Assignee:
Asahi Denka Kogyo Co., Ltd.
International Classes:
C07C43/23; C07C46/02; C07C46/06; C07C50/28; C07D309/10; C07D311/58; C07D311/72; C07D493/08; C07D493/10; (IPC1-7): C07D311/58; C07C43/23; C07C46/06; C07C50/28; C07D493/08
Domestic Patent References:
| JP59176273A |
Other References:
Ｊ．Ａｍ．Ｃｈｅｍ．Ｓｏｃ．，Ｖｏｌ．１０１，Ｎｏ．２２，ｐ．６７１０−６７１６（１９７９）
Attorney, Agent or Firm:
Kenichi Morita