| 发明名称 |
Process for the preparation of vitamin a, intermediates, and process for the preparation of the intermediates |
| 摘要 |
There are provided a dihalogen derivative represented by formula (2): <CHEM> wherein X represents a halogen atom and R<2> represents a protective group for a hydroxyl group; a process for producing the same; and a process for producing vitamin A by use of said dihalogen derivative. |
| 申请公布号 |
AU3459200(A) |
申请公布日期 |
2000.10.23 |
| 申请号 |
AU20000034592 |
申请日期 |
2000.04.03 |
| 申请人 |
SUMITOMO CHEMICAL COMPANY LIMITED |
发明人 |
TOSHIYA TAKAHASHI;ATSUSHI FURUTANI;SHINZO SEKO |
| 分类号 |
C07C67/00;C07C67/287;C07C69/63;C07C403/06;C07C403/22 |
主分类号 |
C07C67/00 |
| 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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