发明名称 |
Process for preparation of 2-substituted-1,4-naphthoquinone. |
摘要 |
<p>A process for preparation of a 2-substituted-1,4-naphthoquinone which comprises oxidizing a 2-substituted naphthalene to obtain reaction products comprising a 2-substituted-1,4-naphthoquinone and a 6-substituted-1,4-naphthoquinone; adding a diene compound to the reaction products and heating the mixture to form a Diels-Alder reaction adduct between the diene compound and the 6-substituted-1,4-naphthoquinone in the reaction products; and separating the 2-substituted-1,4-naphthoquinone from the adduct.</p> |
申请公布号 |
EP0430164(A2) |
申请公布日期 |
1991.06.05 |
申请号 |
EP19900122643 |
申请日期 |
1990.11.27 |
申请人 |
NIPPON SHOKUBAI KAGAKU KOGYO CO. LTD. |
发明人 |
SUGISHIMA, NOBORU;IKEDA, NORIAKI;FUJII, YASUSHI;AOKI, RYUJI;HATTA, YUMI |
分类号 |
C07C46/02;C07C46/04;C07C46/10;C07C49/675;C07C49/697;C07C50/10;C07C50/24;C07C66/02;C07C205/46;C07C205/47;C07C323/22 |
主分类号 |
C07C46/02 |
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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