FLAME RETARDANT COMPOUND, METHOD OF PREPARING THE SAME AND USE THEREOF
申请人:Elite Electronic Material (Zhongshan) Co., Ltd.
公开号:US20190085150A1
公开(公告)日:2019-03-21
Disclosed is a phosphorus-containing compound capable of serving as a flame retardant to be used in conjunction with other ingredients to make resin compositions, useful for fabricating such as a prepreg, a resin film, a resin film with copper foil, a laminate or a printed circuit board, having improved one or more properties including glass transition temperature, coefficient of thermal expansion, thermal resistance, flame retardancy, dielectric constant, and dissipation factor. In addition, a method of preparing the phosphorus-containing compound and a resin composition comprising the phosphorus-containing compound are also disclosed.
Development of a Multi Kilogram-Scale, Tandem Cyclopropanation Ring-Expansion Reaction en Route to Hedgehog Antagonist IPI-926
作者:Brian C. Austad、Andrew B. Hague、Priscilla White、Stéphane Peluso、Somarajan J. Nair、Kristopher M. Depew、Michael J. Grogan、André B. Charette、Lin-Chen Yu、Caroline D. Lory、Louis Grenier、André Lescarbeau、Benjamin S. Lane、Richard Lombardy、Mark L. Behnke、Nii Koney、James R. Porter、Matthew J. Campbell、Jeanne Shaffer、Jimin Xiong、Joseph C. Helble、Michael A. Foley、Julian Adams、Alfredo C. Castro、Martin R. Tremblay
DOI:10.1021/acs.oprd.6b00048
日期:2016.4.15
cyclopropanation reactions, we developed new iodomethylzinc bis(aryl)phosphate reagents that were found to be both effective and safe. These soluble reagents can be prepared under mild conditions and are stable during the course of the reaction. Importantly, they have favorable energetics relative to other cyclopropanatingagents such as EtZnCH2I. Herein, we describe the process optimization studies that led
A polymer composition includes a substantially transparent, rubber modified aromatic vinyl resin and a cyclic alkyl phosphate compound. In some embodiments, the cyclic alkyl phosphate compound is able to impart good flame retardancy, while maintaining a good balance of the other physical and mechanical properties of the resin including the transparency and impact strength of the resin.
[EN] HIGH HEAT MONOMERS AND METHODS OF USE THEREOF<br/>[FR] MONOMÈRES À CHALEUR ÉLEVÉE ET LEURS PROCÉDÉS D'UTILISATION
申请人:SABIC GLOBAL TECHNOLOGIES BV
公开号:WO2016014536A1
公开(公告)日:2016-01-28
High purity epoxide compounds, methods for preparing the high purity epoxide compounds, and compositions derived from the epoxide compounds are provided. Also provided are materials and articles derived from the epoxide compounds.
[EN] METHODS FOR STEREOSELECTIVE REDUCTION<br/>[FR] PROCÉDÉS DE RÉDUCTION STÉRÉOSÉLECTIVE
申请人:INFINITY PHARMACEUTICALS INC
公开号:WO2009086451A1
公开(公告)日:2009-07-09
The invention is directed to a method to reduce a C-C double bond of an enone of a steroidal compound to produce a mixture of β ketone product and α ketone product, comprising treating a solution or suspension of the steroidal compound in a solvent with hydrogen gas in the presence of a catalyst and a substituted pyridine.