CAS: 115-76-4; Prenderol

相似化合物

510-20-3 77-25-8 77-99-6

上下游产品

diethyl diethylmalonate diethylbarbituric acid formaldehyd 2-Ethylbutyraldehyde 2,2-Diaethyl-propandiol-(1,3)-dicarbamat N.N.N'.N'.2.2-Hexaethyl-1.3-dicarbamoyloxy-propan 1,3-dibromo-2,2-diethylpropane 2-ethyl-2-(hydroxymethyl)butanoic acid

📜二乙基丙二酸二乙酯置于lithium Aluminium Tetrahydride体系中,用 四氢呋喃 用作溶剂,以74%的收率获得丙二醇乙醚
参考文献:The Synthesis And Crystal Structure Of β-Substituted Thiaporphyrins With Novel Cyclic Substituents
标题:The Synthesis And Crystal Structure Of β-Substituted Thiaporphyrins With Novel Cyclic Substituents
摘要:合成并表征了21,23-二硫卟啉和21-单硫卟啉,这些化合物在β-噻吩碳原子处引入了丙烷-1,3-二醇氧和其衍生物.引入的环状取代基改变了卟啉的电子性质.2,3-双(2,2-二苄基丙烷-1,3-二醇氧)取代的21-单硫卟啉的x射线结构显示出比已经报道的β-未取代21-单硫卟啉的鞍形结构更平面.
Doi:10.1246/bcsj.77.1173

专利信息

专利号:US-2003130433-A1
优先权日:2001-10-30
标题 :Process for the production of graft polymers
发明人：WENZ ECKHARD; BUCHHOLZ VERA; EICHENAUER HERBERT; WOLF UDO; BORN RALF-JURGEN; JANSEN ULRICH; DIETZ WOLFGANG
摘要:A process of preparing a graft polymer (e.g., an ABS graft copolymer), which involves determining the concentration of at least one reaction component during the course of the reaction by means of Raman spectroscopy, is disclosed. The process, more particularly, comprises: (a) synthesizing the graft polymer from a reaction mixture comprising reactive components (e.g., monomers such as styrene and acrylonitrile, and a graft base); (b) analyzing the reaction mixture, at intervals, during the synthesis of the graft polymer, by means of Raman spectra; (c) recording the results of the Raman spectra analysis; (d) determining the concentration of at least one of said reactive components (e.g., styrene) by means of spectral evaluation of the recorded Raman spectra; and (e) terminating the synthesis reaction of the graft polymer when the concentration of at least one of the reactive components has reached a predetermined concentration value.

专利号:US-5510516-A
优先权日:1990-07-06
标 题 :Process for selective epoxidation of unsaturated (meth)acrylates, new functional (meth)acrylates obtained and their application to the synthesis of new polymers
发明人：CAUBERE PAUL; FORT YVES; ORTAR AGNES
权利人:ATOCHEM
摘要:An unsaturated (meth) acrylic compound of formula: (I) (X=O, S, NH, NR3 (R3=C1-12-alkyl) or O-(CH2)n (where n=1-16 approximately); R2=C2-20 straight-chain or branched alkyl, monocyclic or polycyclic cycloalkyl or heterocycloalkyl, or alkylaryl hydrocarbon chain, comprising an olefinic double bond in the chain, or at the end of the chain in the case of alkyl or alkylaryl, or an exocyclic or endocyclic olefinic double bond in the case of monocyclic or polycyclic cycloalkyl or heterocycloalkyl; and R1=H or C1-5-alkyl), is reacted at 10 DEG -60 DEG C. with at least one oxidising compound (hydrogen peroxide) in the presence of at least one catalyst (alkali metal molybdates and tungstates) and in the presence of at least one phase transfer agent and when R2=polycyclic cycloalkyl or hetercycloalkyl, an organic peracid or hydrogen peroxide in the presence of at least one heteropolyacid. To open the epoxide function, the epoxide obtained is reacted with a compound chosen from strong inorganic acids, boron trifluoride etherate complexes, acid salts in the presence of the corresponding acid, halides of trialkylsilanes or trialkoxysilanes, and ketones in the presence of cationic resins.

专利号:US-2006115536-A1
优先权日:2004-11-12
标 题 :Glycerin based synthesis of silver nanoparticles and nanowires
发明人：YACAMAN MIGUEL J; ELECHIGUERRA JOSE L; BURT JUSTIN L; MORONES JOSE R; LOPEZ LETICIA L
权利人:UNIV TEXAS
摘要:The present invention includes compositions and methods for the production of noble metal nanoparticles and nanowires conjugated to polyols or polymers. The present invention allows the incorporation of noble metal nanoparticles to a wide range of products such as body care products to exploit the biocidal properties of silver nanoparticles against bacteria, viruses and fungi.

专利号:US-11059772-B2
优先权日:2017-11-30
标题:Imine-type quaternary ammonium salt catalyst, preparation method thereof and use thereof for preparation of polyisocyanate composition
发明人：WANG NUANCHENG; SHANG YONGHUA; WANG YUQI; SHI BIN; ZHU ZHICHENG; LI HEFU; LI YUAN; HUA WEIQI
权利人:WANHUA CHEMICAL GROUP CO LTD
摘要:Disclosed is an imine-type quaternary ammonium salt catalyst, wherein the catalyst has a general structure formula shown by formula I below; in the formula, R1 and R2, respectively, are independently selected from a C1-C20 linear alkyl or a branched C3-C20 alkyl, and a C1-C20 hydroxylalkyl, a C3-C8 cycloalkyl, and arylated alkyl; R3 is a linear or branched alkyl, cycloalkyl or aryl; and R4 is hydrogen, aryl, a linear C1-C15 alkyl or branched C3-C15 alkyl. Also disclosed are a method for preparing the catalyst and a polyisocyanate composition prepared therefrom. The catalyst, by introducing an imine structure, on the basis of ensuring high catalytic activity thereof, is allowed to have properties of high temperature decomposition and inactivation, and when applied to the synthesis of polyisocyanate, can effectively prevent the risk of explosive polymerization caused by an uncontrolled reaction.

专利号:US-3829522-A
优先权日:1971-10-21
标题:Synthesis of alkynes by dehydrohalogenation
发明人：SCHNEIDER C
权利人:SHERWIN WILLIAMS CO
摘要:MIXTURE AS A CONDENSED LIQUID. THE ALKYNE PRODUCTS ARE OBTAINED IN HIGH YEILD. A PROCESS FOR PREPARING ALKYNES OF HIGH PURITY BY DEHYDROGENATION. HALOGENATED PRECURSORS CONSISTING OF DIHALOALKANES AND MONOHALOALKENES ARE REACTED WITH PARTIAL ALCOHOLATE OF AN ALKALI METAL AND AN ALIPHATIC POLYOL. THE REACTION MIXTURE REMAINS FLUID DURING THE PROCESS. ALKYNES AND VOLATILE BY-PRODUCTS ARE EVAPORATED FROM THE REACTION MIXTURE AND PARTIALLY CONDENSED IN A SEPARATION TO RECOVER THE HIGH-PURITY ALKYNE PRODUCT. THE VOLATILE BY-PRODUCTS ARE RETURNED TO THE REACTION

专利号:US-3721650-A
优先权日:1971-03-22
标题 :Reactive hydroxyalkyl-onium catalysts for synthesis of polyoxazolidones
发明人：D ALELIO G
权利人:ALELIO G D
摘要:A PROCESS FOR PREPARING POLYOXAZOLIDONES IS PROVIDED IN WHICH A POLYEPOXIDE IS REACTED WITH A POLYISOCYANATE IN THE PRESENCE OF CHEMICALLY REACTIVE HYDROXYALKYL-ONIUM CATALYSTS, SELECTED FROM THE CLASS OF AMMONIUM AND PHOSPHONIUM HALIDES HAVING AT LEAST TWO HYDROXYALKYL GROUPS. NOVEL POLYMERS ARE OBTAINED WHEN THESE NEW CATALYSTS CONTAINING TWO OR MORE HYDROXY GROUPS ARE CONDENSED WITH POLYISOCYANATES.