专利名称：Preparation of 4,4-dioxy-substituted stilbenes施工许可管理办法
发明人：James P. Coleman牛顿大学
申请号：US05/846753
哈哈镜子优美的短句申请日：19771031西瓜汁怎么洗掉
公开号：US04189610A
公开日：
19800219
专利内容由知识产权出版社提供致辞格式
摘要：Dehydrohalogenation-rearrangement of 1,1-bis(4-oxy-substituted aryl)-2-haloethanes to yield 4,4'-dioxysubstituted stilbenes is effected by heating an acidic reaction medium comprising the 1,1-bis(4-oxy- substituted aryl)-2-haloethane dissolved in a solution of an aliphatic carboxylic acid and a carboxylic acid salt. The process is particularly directed to the preparation of 4,4'-dihydroxystilbene from 1,1-bis(4-hydroxyphenyl)-2-chloroethane.
申请人：MONSANTO
巴音布鲁克草原代理人：Wendell W. Brooks,J. W. Williams, Jr.,J. D. Kennedy
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