发明授权
US5072053A 1,3-di-arylmethoxy-4,6-dinitro-benzenes, process for their preparation
and process for the preparation of 4,6-diaminoresorcinol
失效
1,3-二氨基四甲基-4,6-二苯乙烯，其制备方法和制备4,6-DIAMINORESORCINOL的方法
- 专利标题： 1,3-di-arylmethoxy-4,6-dinitro-benzenes, process for their preparation and process for the preparation of 4,6-diaminoresorcinol
- 专利标题（中）： 1,3-二氨基四甲基-4,6-二苯乙烯，其制备方法和制备4,6-DIAMINORESORCINOL的方法
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申请号： US526357申请日： 1990-05-21
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公开(公告)号： US5072053A公开(公告)日： 1991-12-10
- 发明人: Heinz U. Blank , Uwe Heinz
- 申请人： Heinz U. Blank , Uwe Heinz
- 申请人地址： DEX Leverkusen
- 专利权人： Bayer Aktiengesellschaft
- 当前专利权人： Bayer Aktiengesellschaft
- 当前专利权人地址： DEX Leverkusen
- 优先权： DEX3919045 19890610
- 主分类号： C07C201/12
- IPC分类号： C07C201/12 ; B01J23/44 ; C07B61/00 ; C07C205/37 ; C07C213/02 ; C07C217/86
摘要：
The new 1,3-di-arylmethoxy-4,6-dinitrobenzenes of the formula ##STR1## in which R.sup.1 and R.sup.2 independently of one another denote hydrogen or C.sub.1 -C.sub.4 -alkyl andAr represents C.sub.6 -C.sub.12 -aryl,can be prepared by reaction of 1,3-dihalogeno-4,6-dinitro-benzenes of the formula ##STR2## in which Hal represents chlorine or bromine, with an arylmethanol of the formulaAr--C(R.sup.1, R.sup.2)OH (IV),in which R.sup.1, R.sup.2 and Ar have the said meaning, and a strong base in the temperature range from 0.degree. to 100.degree. C.These di-arylmethoxy-dinitro-benzenes can be converted into 4,6-diaminoresorcinol by catalytic reduction with hydrogen.
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