发明名称 |
Process for producing aminobenzopyran compound |
摘要 |
There is provided a method for producing aminobenzopyran compound, which results in little wastes, has no influence on reactors and necessitates a simple work-up procedure. Concretely, it is a method for producing aminobenzopyran compound of formula (2) characterized by reducing a nitro group on 2,2-dimethyl 2H-1-benzopyran compound of formula (1) with hydrazine in the presence of a metal catalyst.
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申请公布号 |
US2005192444(A1) |
申请公布日期 |
2005.09.01 |
申请号 |
US20050524686 |
申请日期 |
2005.04.19 |
申请人 |
SHIMIZU TAKANORI;MATSUMOTO HIROO |
发明人 |
SHIMIZU TAKANORI;MATSUMOTO HIROO |
分类号 |
C07D311/58;C07D311/70;(IPC1-7):C07D311/04 |
主分类号 |
C07D311/58 |
代理机构 |
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代理人 |
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地址 |
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