发明名称 |
PROCESSES FOR PRODUCING (4E)-5-CHLORO-2-ISOPROPYL-4-PENTENOIC ESTER AND OPTICALLY ACTIVE ISOMER THEREOF |
摘要 |
The present invention provides processes for producing a (4E)-5-chloro-2-isopropyl-4-pentenoate and an optical isomer of the (4E)-5-chloro-2-isopropyl-4-pentenoate, namely a process for producing a (4E)-5-chloro-2-isopropyl-4-pentenoate represented by the following formula (4), which comprises reacting a compound represented by the following formula (2) in the presence of an aprotic solvent (II) with a base (II) and then with (1E)-1,3-dichloro-1-propene to give a compound represented by the following formula (3), and dealkoxycarbonylating either ester in the compound represented by the following formula (3), and a process for producing a (S)-(4E)-5-chloro-2-isopropyl-4-pentenoate represented by the following formula (5), which comprises optically resolving a (4E)-5-chloro-2-isopropyl-4-pentenoate represented by the formula (4) obtained by the above-mentioned process (wherein R is a lower alkyl group or an aralkyl group). <CHEM> <CHEM> |
申请公布号 |
EP1571138(A1) |
申请公布日期 |
2005.09.07 |
申请号 |
EP20030777366 |
申请日期 |
2003.12.09 |
申请人 |
ASAHI GLASS COMPANY LTD. |
发明人 |
MORI, NOBUAKI;MATSUMURA, YASUSHI;MORIZAWA, YOSHITOMI;KAMINUMA, TOSHIHIKO;AOKI, YUUICHI |
分类号 |
C07C67/32;C07C67/343;C07C67/48;(IPC1-7):C07C67/32;C07B53/00;C07B57/00;C07C69/65 |
主分类号 |
C07C67/32 |
代理机构 |
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代理人 |
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地址 |
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