Transition‐Metal‐Free Intermolecular Hydrocarbonation of Styrenes Mediated by NaH/1,10‐Phenanthroline
摘要:
AbstractA transition‐metal‐free intermolecular coupling reaction of halocompounds with styrenes in the presence of NaH and 1,10‐phenanthroline was developed. This reaction afforded hydrocarbonated products with complete anti‐Markovnikov selectivity. The method allows the use of a wide range of halocompounds, including aryl and alkyl halides, and good functional group tolerance. Detailed mechanistic studies indicated that an anilide anion generated in situ by the NaH‐mediated reduction of 1,10‐phenanthroline works as an electron donor and a hydrogen source.
Chiral Diphosphonites as Ligands in the Ruthenium-Catalyzed Enantioselective Reduction of Ketones, B-Ketoesters and Ketimines
申请人:Reetz Manfred T.
公开号:US20080255355A1
公开(公告)日:2008-10-16
Chiral ruthenium complexes are disclosed, obtained by reaction of a ruthenium salt with a chiral diphosphonite. Chiral diols with the general structure given in scheme
1
are preferably used as chiral diphosphonites. Said ruthenium complexes can be simply and economically obtained and provide high enantioselectivity on reduction of ketones, β-ketoesters and ketimines.
Glucose-sensing luminescent dyes, polymers, and sensors are provided. Additionally, systems including the sensors and methods of using these sensors and systems are provided.
LIGHT EMITTING APPARATUS AND ELECTRONIC DEVICE COMPRISING THE SAME
申请人:DOW GLOBAL TECHNOLOGIES LLC
公开号:US20200317999A1
公开(公告)日:2020-10-08
A light emitting apparatus affording high quality colors and energy economy and an electronic device comprising the light emitting apparatus.
一种提供高质量颜色和节能的发光装置以及包括该发光装置的电子设备。
Polymerizable composition and compound therefor
申请人:Fuji Photo Film Co., Ltd.
公开号:EP1466893A1
公开(公告)日:2004-10-13
To provide a polymerizable composition suitable for a lithographic printing plate precursor which can satisfy the requirements of high sensitivity, excellent storage stability and long press life and enables direct platemaking from digital data from computer, etc. when recording is conducted a solid laser or semiconductor laser emitting ultraviolet ray, visible light or infrared ray and a compound therefore, the present invention relates to a photoradical polymerizable composition comprising a polyfunctional crosslinking agent having a specific structure represented by formula (I) or (II) defined in the specification.