CAS: 1825-62-3; Ethoxy(Trimethyl)Silane

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CAS号75-77-4 三甲基氯硅烷 | CAS号64-17-5 乙醇 | CAS号999-97-3 六甲基二硅氮烷 | CAS号78-62-6 二甲基二乙氧基硅烷 | CAS号7352-03-6 N-(Ethoxymethyl... | CAS号145861-40-1 2-[2-(trimethyl... | CAS号770-09-2 苄基三甲基硅烷 | CAS号5908-40-7 N-[2-oxo-2-[(4-... | CAS号5337-20-2 2-甲基-2-(三甲基甲硅烷基)丙酸乙酯 | CAS号43112-38-5 3-三甲硅基-2-恶唑烷酮 | CAS号107-52-8 十四甲基六硅氧烷 | CAS号107-51-7 八甲基三硅氧烷 | CAS号141-62-8 十甲基四硅氧烷 | CAS号141-63-9 十二甲基五硅氧烷 | CAS号541-01-5 十六甲基七硅氧烷 | CAS号3555-47-3 四(三甲基硅氧基)硅烷 | CAS号107-46-0 六甲基二硅氧烷 | CAS号93-89-0 苯甲酸乙酯 | CAS号4325-85-3 硼酸三(三甲硅烷基)酯 | CAS号17928-28-8 甲基三(三甲基硅氧基)硅烷

Trimethylsilanyl-Methanesulfinic Acid Ethyl Ester 反应生成三甲基乙氧基硅烷
参考文献:Wenschuh,E.; Radeck,W.,Zeitschrift Fur Chemie,1984,Vol. 24,# 8,P. 306
标题:Wenschuh,E.; Radeck,W.,Zeitschrift Fur Chemie,1984,Vol. 24,# 8,P. 306

专利信息

专利号:US-9593183-B2
优先权日:2012-11-23
标 题 :Preparation method of catalyst for polymerization of polyolefin and process for polymerization of polyolefin using the same
发明人：CHAE BYUNG HUN; LIM SEONG SOO; JOO CHEON IK; LEE JUNG YEOP; JIN SOOK YOUNG
权利人:LOTTE CHEMICAL CORP
摘要:This disclosure relates to a method for preparing a catalyst for synthesis of a polyolefin and a process for synthesis of a polyolefin using the same. More particularly, this disclosure relates to a method for preparing a catalyst for synthesis of a polyolefin including: reacting a magnesium compound with an alkane diol having a carbon number of 3 to 15 unsubstituted or substituted with an alkyl group having a carbon number of 1 to 5, and a benzoyl halide compound to prepare a magnesium compound solution; reacting the magnesium compound solution with a first transition metal compound to prepare a support; and reacting the support with a second transition metal compound to produce a solid catalyst, and a process for synthesis of a polyolefin using the same.

专利号:US-2004014168-A1
优先权日:1998-06-11
标题:Reagents and methods for library synthesis and screening
发明人：SCHREIBER STUART L; BLACKWELL HELEN E; PEREZ FERNANDEZ LUCY; TALLARICO JOHN A
权利人:HUGHES HOWARD MED INST
摘要:The invention provides novel solid supports for the synthesis of compound libraries. The solid supports have the physical capacity to deliver at least 50 nmol of compound and are functionalized with a silicon-containing linker. In one embodiment of the invention the solid support comprises a bead having a diameter of between approximately 400 and 600 μm functionalized with a silicon-containing linker. According to certain embodiments of the invention the bead is a polystyrene bead. According to certain embodiments of the invention the linker is a diisopropylalkyl-substituted silyl ether. The invention further provides grafted polymeric supports such as lanterns functionalized with a silicon-containing linker. n The invention provides methods for screening in which compounds are synthesized on solid supports in a quantity so that a single solid support such as a bead provides a stock solution sufficient to perform hundreds or thousands of biological or chemical assays. The methods include decoding the sequence of chemical reactions used to synthesize the compound by identifying tags incorporated into the compound during synthesis.

专利号:WO-2011045627-A1
优先权日:2009-10-12
标 题:Viricide agents having nanostructured biocatalysts materials of titanium dioxide (tio2) and silicium dioxide (si02) with platinum and iridium modified and dispersed on the surface
发明人：LOPEZ GOERNE TESSY MARIA
权利人:ARCE MACIAS CARLOS FRANCISCO; MUNOZ OCHOA JOSE FRANCISCO; LOPEZ GOERNE TESSY MARIA
摘要:This invention is related to the synthesis of nanostructured inorganic materials with a general formula M a L b B c 0 2(b+c) (OH)x(PO 4 )y(S0 4 ) z where M is silicium, titanium or a mix of both, and L is iridium and B platinum, B+L
专利号:US-4076758-A
优先权日:1976-12-09
标题 :Synthesis of vicinal glycols
发明人：OWSLEY DENNIS C; BLOOMFIELD JORDAN J
权利人:MONSANTO CO
摘要:Relatively low molecular weight primary alcohols are coupled to form relatively higher molecular weight vicinal glycols in which a trialkylsilyl protecting group is employed on the hydroxyl position of said low molecular weight primary alcohol during said coupling reaction. n BACKGROUND OF THE INVENTION n This invention relates to the production of vicinal glycols from starting molecules having fewer carbon atoms such as, for example, the preparation of ethylene glycol and glycerol from methanol. More particularly, this invention is concerned with the coupling of relatively low molecular weight or short chain primary alcohols to form relatively higher molecular weight or vicinal glycols by employing a trialkylsilyl protecting group on the hydroxyl position of said low molecular weight primary alcohol. n In view of the fuel and mineral shortages facing the world, particularly petroleum feedstocks, there is a scarcity of vital building blocks such as ethylene and propylene used to synthesize many modern chemical entities. Consequently, alternate carbon sources for the chemical industry's basic organic chemicals must be developed for future needs from either coal or single carbon molecules such as carbon monoxide, carbon dioxide or methanol. n Two major products produced from petroleum-derived feedstocks such as ethylene and propylene are, respectively, ethylene glycol and glycerol. Ethylene glycol is widely used for antifreeze and in numerous nonantifreeze outlets, including cellophane, polyester fibers and films, and polyglycols. Glycerol finds wide use in cosmetics, dentifrices, drugs and pharmaceuticals, alkyd resins, cellophane and in tobacco as a humectant and in the manufacture of plasticizers for cellulose cigarette filters. n In the production of ethylene glycol, ethylene oxide is usually first prepared by direct oxidation of ethylene or by the chlorohydrin synthesis and the ethylene oxide is then reacted with water to make ethylene glycol. n Although glycerol is a natural by-product of soap manufacture, a significant quantity of synthetic glycerin also is prepared from propylene. One such process involves the chlorination of propylene to allyl chloride, conversion into epichlorohydrin, and thence into glycerin. Another process involves oxidation of propylene to acrolein, conversion into allyl alcohol, then reaction with hydrogen peroxide to yield glycerin. In a third process, propylene oxide is catalytically converted into allyl alcohol, which is treated with peracetic acid to yield glycidol. Glycidol then combines with water to make glycerin. n An improved method of producing vicinal glycols such as, for example, ethylene glycol and glycerol, from shorter chain molecules such as, for example, methanol, instead of employing petroleum-derived feedstocks such as ethylene and propylene, would provide significant advantages over prior methods of production. n BRIEF DESCRIPTION OF THE INVENTION n In accordance with the present invention, vicinal glycols are produced from starting molecules having fewer carbon atoms. In particular, relatively low molecular weight or short chain primary alcohols are coupled to form relatively higher molecular weight vicinal glycols by employing a trialkylsilyl protecting group on the hydroxyl position of said low molecular weight primary alcohol. n As used herein, the term 'trialkylsilyl' means a group containing a silicon atom bonded to three alkyl radicals, any of which can be the same as, or different than, any other. n The process of this invention involves the oxidative or dehydrogenative coupling of the shorter chain primary alcohol without over-oxidation to undesirable by-products, for example, aldehydes. The initial dehydrogenation of the shorter chain primary alcohol is thus made to take place on the carbon rather than the hydroxyl group by using the trialkylsilyl blocking group on the hydroxyl. Alcoholysis of the coupled reaction product then readily yields the desired vicinal glycol. n The coupling reaction of this invention is briefly illustrated by the preparation of ethylene glycol and glycerol from methanol. In order to produce ethylene glycol, two trialkylsilyl blocked methanol molecules are reacted to form 1,2-bis(trialkylsiloxy)ethane which, upon methanolysis, yields ethylene glycol. In order to produce glycerol, three trialkylsilyl blocked methanol molecules are reacted to form 1,2,3-tris(trialkylsiloxy)propane which, upon methanolysis, yields glycerol. n The above process has definite advantages over the direct coupling of methanol to ethylene glycol and glycerol. This process has a higher selectivity for ethylene glycol and glycerol and less by-product is produced. That the direct coupling of methanol undesirably leads to a substantial amount of formaldehyde is seen from the work of Schwetlich et al, Angew. Chem. 72, 779 (1960); and Ladygin and Saraeva, Kinetics and Catalysis 6, 189-95 (1965) and 7, 832-39 (1966).

专利号:US-2024010511-A1
优先权日:2019-05-02
标 题 :Methods and compositions for synthesis of phosphor and its incorporation in a polymer matrix for light conversion
发明人：SAHI SUNIL
权利人:SOLGO INC; SOLGRO INC
摘要:The invention relates to methods and compositions for synthesizing a phosphor and preparing a surface-modified phosphor comprising a phosphor, a silica, and a silane, and articles comprising same. The invention also relates to a method of dispersion of the disclosed surface-modified phosphor with a blue emitting agent in a polymer matrix and uses thereof.

专利号:US-6340751-B1
优先权日:1998-07-24
标 题 :Process for the preparation of 4-substituted azetidinone derivatives
发明人：SAITO TAKAO; MURAYAMA TOSHIYUKI; MATSUMOTO TAKAJI; MIURA TAKASHI
权利人:TAKASAGO PERFUMERY CO LTD
摘要:Disclosed is a process for the preparation of a 4-substituted azetidinone derivative, which comprises reacting an azetidinone derivative and an amide compound in the presence of a magnesium compound such as those represented by the following formulas (II): n and (IV): n represented by the following formula (III): n n n MgR 5 R 6   (III) n n n wherein R 5 represents a C 1-12 alkyl group, a C 2-5 alkenyl group, a 5- to 8-membered alicyclic group which may be substituted by a lower C 1-4 alkyl group, a phenyl group which may be substituted by a lower C 1-4 alkyl group, a lower C 1-4 alkoxy group or a halogen atom or a benzyl group which may be substituted by a lower C 1-4 alkyl group, a lower C 1-4 alkoxy group or a halogen atom, and R 6 represents a halogen atom, a methanesulfonyloxy group, a benzenesulfonyloxy group, a p-toluenesulfonyloxy group, a trifluoromethanesulfonyloxy group, an acetoxy group which may be substituted by a halogen atom or a cyano group or an OR 7 group (R 7 representing a lower C 1-4 alkyl group, a substituted or unsubstituted phenyl group or a substituted or unsubstituted benzyl group). The process provides an industrially excellent process for the preparation of a 4-substituted azetidinone derivative which permits the selective preparation of an intermediate for the synthesis of a carbapenem antibacterial agent having a desired 1-β′ configuration.