发明名称 |
Malonic acid monomethyl derivates and production process thereof |
摘要 |
<p>A novel monomethyl malonate derivative is represented by following Formula (I): <CHEM> wherein X is a halogen atom; and Me is methyl group. This compound can be prepared by the steps of (A) reacting a benzyl halide derivative represented by following Formula (II): <CHEM> wherein X and Y may be the same as or different from each other and are each a halogen atom, with dimethyl malonate in the presence of a base to yield a dimethyl malonate derivative represented by following Formula (III): <CHEM> wherein X and Me have the same meanings as defined above; and (B) hydrolyzing the dimethyl malonate derivative of Formula (III). The compound is useful in the production of an indanonecarboxylic acid ester having a halogen atom on the indanone ring.</p> |
申请公布号 |
EP1541545(A1) |
申请公布日期 |
2005.06.15 |
申请号 |
EP20040028012 |
申请日期 |
2004.11.25 |
申请人 |
DAICEL CHEMICAL INDUSTRIES, LTD. |
发明人 |
NOSE, SATORU;SANO, KIEKO;HAMATANI, TAKESHI |
分类号 |
C07C69/612;C07C67/30;C07C67/313;C07C67/343;C07C69/65;(IPC1-7):C07C69/65 |
主分类号 |
C07C69/612 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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