环己烷-1,3-二酮与TsCl / Et 3 N的反应,然后在MeCN中用芳基或烷基硫醇和K 2 CO 3处理所得的3-(甲苯磺酰氧基)环己-2-烯-1-酮(芳基硫烷基)环己-2-烯-1-酮或3-(烷基硫基)环己-2-烯-1-酮。通过在MeCN中使用NBS,这些化合物很容易在C-2处溴化;暴露于DBU在MeCN在室温下然后使得芳构化,得到的元-arylsulfanyl-和元- (烷硫基)苯酚。
SUBSTITUTED IMIDAZOLONE DERIVATIVES, PREPARATIONS AND USES
申请人:Bouey Edith
公开号:US20100004159A1
公开(公告)日:2010-01-07
The present invention relates to polysubstituted imidazolone derivatives, to the pharmaceutical compositions comprising them and to the therapeutic uses thereof in the human and animal health fields. The present invention also relates to a process for preparing these derivatives.
Reaction-activated palladium catalyst for dehydrogenation of substituted cyclohexanones to phenols and H<sub>2</sub> without oxidants and hydrogen acceptors
作者:Jingwu Zhang、Qiangqiang Jiang、Dejun Yang、Xiaomei Zhao、Yanli Dong、Renhua Liu
DOI:10.1039/c5sc01044f
日期:——
A combination of Pd/C and H2 is found to dehydrogenate a wide range of substituted cyclohexanones and 2-cyclohexenones to their corresponding phenols with high isolated yields, with H2 as the only byproduct.
Copper Mediated Formation of Carbon-Heteroatom Bonds Using Organoboron Reagents and Ultrasound
作者:George W. Kabalka、Bryan J. Musolino
DOI:10.3987/com-14-s(k)18
日期:——
This report summarizes research efforts focused on copper acetate mediated reactions to form new carbon-heteroatom bonds using organoboron reagents under ultrasound irradiation. The method involves the application of ultrasound irradiation to the Chan-Evans-Lam reaction to achieve O-arylation of phenols, N-arylation of anilines and indoles, and S-arylation of thiols. Ultrasound irradiation was found to decrease reaction times from 72 hours to 4 hours while improving the product yields an average of 20%(1) Representative C-O, C-N, and C-S coupling reactions were successfully scaled-up from the milligram to gram levels while maintaining good product yields offering potential applications in industrial processes.
DERIVES D'IMIDAZOLONES SUBSTITUES, PREPARATION ET UTILISATIONS
申请人:Genfit
公开号:EP2049107A2
公开(公告)日:2009-04-22
[EN] SUBSTITUTED IMIDAZOLONE DERIVATIVES, PREPARATION AND USES<br/>[FR] DERIVES D'IMIDAZOLONES SUBSTITUES, PREPARATION ET UTILISATIONS
申请人:GENFIT
公开号:WO2008012470A2
公开(公告)日:2008-01-31
[EN] The present invention relates to polysubstituted imidazolone derivatives, to the pharmaceutical compositions containing them and to the therapeutic uses thereof in the human and animal health fields. The present invention also relates to a process for preparing these derivatives. [FR] La présente invention concerne des dérivés d'imidazolones poly-substitués, les compositions pharmaceutiques les comprenant ainsi que leurs applications thérapeutiques dans les domaines de la santé humaine et animale. La présente invention a également trait à un procédé de préparation de ces dérivés.