| 发明名称 |
PROCESS FOR PREPARING BENZOPYRANE COMPOUNDS, INTERMEDIATES, AND PROCESS FOR PREPARING THEREOF |
| 摘要 |
FIELD: chemical industry. SUBSTANCE: claimed process for preparing substituted benzopyrane derivatives comprises cyclizing respective open-chain intermediates. EFFECT: more efficient preparation process. |
| 申请公布号 |
RU95113433(A) |
申请公布日期 |
1997.02.20 |
| 申请号 |
RU19950113433 |
申请日期 |
1993.11.19 |
| 申请人 |
SMITKLAJN BICHAM P.L.S. |
发明人 |
GREKHEM DZHONSN;NEJL SMIT;RICHARD GREKHEM DZHIN;INDERDZHIT SINGKH MEHNN;VEHNS NOVAK |
| 分类号 |
C07C233/24;C07C257/04;C07D;C07D257/04;C07D405/04 |
主分类号 |
C07C233/24 |
| 代理机构 |
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代理人 |
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