Synthesis of<i>o</i>-(Dimethylamino)aryl Ketones and Acridones by the Reaction of 1,1-Dialkylhydrazones and Arynes
作者:Anton V. Dubrovskiy、Richard C. Larock
DOI:10.1021/ol2016803
日期:2011.8.5
A novel, efficient route to biologically and pharmaceutically important o-(dimethylamino)aryl ketones and acridones has been developed starting from readily available 1,1-dimethylhydrazones of aldehydes and o-(trimethylsilyl)aryl triflates. The reaction proceeds under mild conditions, tolerates a wide range of functional groups, and provides the final products in good to excellent yields.
Catching α-aminoalkyl radicals: cyclization between tertiary alkylanilines and alkenes
作者:Zengqiang Song、Andrey P. Antonchick
DOI:10.1016/j.tet.2016.04.052
日期:2016.12
polycyclic heterocycles by radical annulation of tertiary arylamine derivatives is described. Radical annulation occurs via formation of α-aminoalkyl radicals. The reaction is initiated by tetrabutylammoniumiodideusing tert-butyl hydroperoxide as oxidant. The developed method allows functionalization of diverse tertiary alkylanilines with different alkenes.
NOVEL TETRACARBOXYLIC DIANHYDRIDE, POLYIMIDE RESIN AND METHOD FOR PRODUCING THE SAME, PHOTOSENSITIVE RESIN COMPOSITIONS, PATTERNING PROCESS, METHOD FOR FORMING CURED FILM, INTERLAYER INSULATING FILM, SURFACE PROTECTIVE FILM, AND ELECTRONIC PARTS
申请人:SHIN-ETSU CHEMICAL CO., LTD.
公开号:US20190169211A1
公开(公告)日:2019-06-06
The present invention has been made in view of the circumstances herein. An object of the present invention is to provide: a tetracarboxylic dianhydride which can lead to a polyimide usable as a base resin of a photosensitive resin composition capable of forming a fine pattern and obtaining high resolution without impairing excellent characteristics such as mechanical strength and adhesiveness; a polyimide resin obtained by using the tetracarboxylic dianhydride; and a method for producing the polyimide resin. The tetracarboxylic dianhydride is shown by the following general formula (1).
[EN] PROCESS AND INTERMEDIADES FOR THE PREPARATION OF 7-ALKYLATED STEROIDS<br/>[FR] PROCÉDÉ ET INTERMÉDIAIRES POUR LA PRÉPARATION DE STÉROÏDES 7-ALKYLÉS
申请人:CRYSTAL PHARMA SAU
公开号:WO2015181116A1
公开(公告)日:2015-12-03
A process for preparing compounds of formula (I), or a salt, solvate or stereoisomer thereof, including Fulvestrant, which process comprises free radical to a compound of formula (III), or a salt, solvate or stereoisomer thereof. The invention also refers to intermediates of said process.