CAS: 24823-81-2; 1,1,1-Trimethoxypropane

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CAS号554-12-1 丙酸甲酯 | CAS号149-73-5 原甲酸三甲酯 | CAS号67-56-1 甲醇 | CAS号39739-45-2 methyl propanim... | CAS号57610-38-5 2-乙基-1H-咪唑-4,5-二甲腈 | CAS号67-56-1 甲醇 | CAS号554-12-1 丙酸甲酯 | CAS号5634-52-6 methylketene di... | CAS号108-67-8 均三甲苯 | CAS号29926-42-9 2-丙酰基-2-噻唑啉 | CAS号70347-04-5 3-甲基-4-甲氧基苯甲酸甲酯 | CAS号34569-15-8 5-氯-2-乙基-1H-苯并[d]咪唑 | CAS号501918-66-7 2-乙基苯并噁唑-6-羧酸

丙酸甲酯,原甲酸三甲酯置于硫酸体系中,用 甲醇 用作溶剂,化学反应生成原丙酸三甲酯
参考文献:从香豆酸甲酯到官能化芳烃的不同diels-alder方法
标题:从香豆酸甲酯到官能化芳烃的不同diels-alder方法
摘要:香豆酸甲酯和富电子的亲二烯体之间的电子反diels-Alder反应产生取代的苯甲酸酯.高产率的单锅法可以通过多种途径将易于获得的乙烯基醚,缩酮或原酸酯双亲亲烯转化为功能化的芳族体系.
Doi:10.1016/j.Tetlet.2013.02.083

专利信息

专利号:US-4045422-A
优先权日:1974-04-15
标题 :Synthesis of α-nitrosoketal dimers
发明人：ROGIC MILORAD M; SWERDLOFF MICHAEL D; DEMMIN TIMOTHY R
权利人:ALLIED CHEM
摘要:Ketals of α-oximinoketones and methods for the preparation of these compounds including intermediates are described. The compounds disclosed include both α-oximinoketals and cyclic ketals of α-oximinoketones. Also disclosed is a class of α-nitrosoketal dimers produced during the synthesis of the corresponding α-oximinoketals and the method for their preparation.

专利号:US-10442830-B2
优先权日:2014-12-03
标题:Synthesis of monoethers of sugar comprising a long alkyl chain and uses thereof as a surfactant
发明人：GOZLAN CHARLOTTE; DUCLOS MARIE-CHRISTINE; DUGUET NICOLAS; LEMAIRE MARC; REDL ANDREAS
权利人:TEREOS STARCH & SWEETENERS BELGIUM; UNIV CLAUDE BERNARD LYON; CENTRE NAT RECH SCIENT
摘要:A process for obtaining a mixture of C4-C8 and C9-C18 alkyl monoether of saccharide, comprising: a) a first step of acetalization or trans-acetalization of a saccharide or of a mixture of saccharides with a C4-C8 aliphatic aldehyde or the acetal thereof, b) a second consecutive or simultaneous step of acetalization or trans-acetalization of the product obtained in a) of the saccharide or mixture of saccharides with a C9-C18 aliphatic aldehyde or the acetal thereof, c) a step of catalytic hydrogenolysis of the saccharide acetals obtained, and d) a step of recovery of a mixture of C4-C8 and C9-C18 alkyl saccharide monoethers. The invention further relates to a mixture of C4-C8 and C9-C18 alkyl saccharide monoethers and the use thereof as a surfactant.

专利号:US-9006347-B2
优先权日:2011-09-08
标 题 :Method of synthesising polycarbonates in the presence of a bimetallic catalyst and a chain transfer agent
发明人：WILLIAMS CHARLOTTE K; KEMBER MICHAEL; BUCHARD ANTOINE; JUTZ FABIAN
权利人:IMP INNOVATIONS LTD
摘要:The invention provides a process for the synthesis of a polycarbonate, the process comprising the step of reacting carbon dioxide with at least one epoxide in the presence of a catalyst of formula (I) and a chain transfer agent. The invention also provides a polymerization system for the copolymerization of carbon dioxide and at least one epoxide comprising a catalyst of formula (I) and a chain transfer agent, polycarbonates produced by the inventive process, a block copolymer comprising a polycarbonate produced by the inventive process, and a method of producing the block copolymer. The invention also relates to novel catalysts of formula (III).

专利号:US-8115002-B2
优先权日:2006-09-20
标 题:Preparation of substituted morphinan-6-ones and salts and intermediates thereof
发明人：WANG PETER X; MOSER FRANK W; CANTRELL GARY L; GROTE CHRISTOPHER W
权利人:WANG PETER X; MOSER FRANK W; CANTRELL GARY L; GROTE CHRISTOPHER W; MALLINCKRODT LLC
摘要:The present invention is directed to processes for the synthesis of morphinan-6-ones and salts, intermediates, and analogs thereof.

专利号:US-4206112-A
优先权日:1974-04-15
标题:α-Nitrosoketal dimers and production of α-oximinoketals therefrom
发明人：DEMMIN TIMOTHY R; ROGIC MILORAD M; SWERDLOFF MICHAEL D
权利人:ALLIED CHEM
摘要:This invention describes novel ketals of α-oximinoketones, methods for the preparation of these compounds and includes novel intermediates formed during the production thereof. The novel class of compounds disclosed herein includes both α-oximinoketals, as well as the cyclic ketals of α-oximinoketones. This invention also discloses a novel class of α-nitrosoketal dimers produced during the synthesis of the corresponding α-oximinoketals, and it also discloses novel methods in the production thereof.

专利号:US-7161024-B2
优先权日:2003-07-10
标题 :Process for the preparation and purification of 2-(alkoxyalkylidene)-3-ketoalkanoic acid esters from 3-ketoalkanoic acid esters
发明人：DRAPER RICHARD W
权利人:SCHERING CORP
摘要:In its several embodiments, this invention discloses a novel process to prepare the compounds of Formula 3: n nwherein R 1 is lower alkyl, and R 2 and R 3 can be the same or different, each being independently selected from the group consisting of alkyl, aryl and aralkyl; said process being carried out in a suitable solvent with at least one tert-amine carboxylate salt catalyst. The compounds of formula 3 are chemical intermediates useful for the synthesis of various heterocyclic compounds. These heterocyclic compounds are in turn useful precursors for diverse pharmaceutical, herbicidal and insecticidal agents. In particular, these intermediates are useful precursors to a variety of CCR5 inhibitors.