尽管有机电合成受到赞赏,但后多组分反应转化化学很少利用这种强大的技术。在此,我们探索了后 Ugi 环化反应,使用 N 中心自由基介导的分子内原位环化,通过使用来自 Ugi 加合物的双酰胺的电化学生成的酰胺自由基来合成 4-咪唑啉酮的多种螺环变体。该协议的特点是在恒定电流条件下使用碳-铂电极进行不分割的电池设置。这些无金属和试剂的反应是可扩展的并且具有广泛的底物范围。
Synthesis of 2,3-Bis(arylamino)benzofurans and 2,3-Bis(arylimino)-2,3-dihydrobenzofurans by a Lewis Acid Catalyzed Reaction of 2-Aryliminophenols with Aryl Isocyanides
that is based on the reaction of 2-aryliminophenols with aryl isocyanides in the presence of a catalytic amount of boron trifluoride diethyl etherate. The reaction gives 2,3-bis(arylamino)benzofurans, some of which are transformed into 2,3-bis(arylimino)-2,3-dihydrobenzofurans by air oxidation, mostly during workup. benzofurans - o-hydroxybenzylideneamines - isocyanides - boron trifluoride - imidoyl
New indole synthesis starting with o-methylphenyl isocyanides such as o-tolyl, 2,4-xylyl, and 2,6-xylyl isocyanide is described in full detail. Treatment of o-tolylisocyanide with LDA in diglyme at −78 °C generated selectively o-(lithiomethyl)phenyl isocyanide in an almost quantitative yield, which on warming up to room temperature was cyclized to indole after aqueous workup. Similary, 2,4-xylyl and
One-Pot Synthesis of 3-Acyl-2-(alkylsulfanyl)indoles and 2-(Alkylsulfanyl)indole-3-carboxylates from (2-Isocyanophenyl)methyl Ketones or (2-Isocyanophenyl)acetates
An efficient method has been developed for the preparation of 3-acyl-2-(alkylsulfanyl)indoles and ethyl 2-(alkylsulfanyl)indole-3-carboxylates under mild conditions. (2-Iso-cyanophenyl)methyl ketones and ethyl 2-(2-isocyanophenyl)acetates were converted into the corresponding isothiocyanates by treatment with sulfur in the presence of a catalytic amount of selenium. The isothiocyanates were then treated
METHODS AND COMPOSITIONS FOR TREATING BACTERIAL INFECTION
申请人:Ginsburg David
公开号:US20100331351A1
公开(公告)日:2010-12-30
The present invention relates to chemical compounds, methods for their discovery, and their therapeutic and research use. In particular, the present invention provides compounds as therapeutic agents against bacterial infections.
Oxidative dimerization of substituted o-methylphenyl isocyanides; synthesis of bidentate bis-isonitrile and cyclic tetradentate tetrakis-isonitrile ligands