三甲氧基酯置于五氯化磷体系中,化学反应生成1,3-二氯丙烷 参考文献:Derick; Bissel,Journal Of The American Chemical Society,1916,Vol. 38,P. 2485 标题:Derick; Bissel,Journal Of The American Chemical Society,1916,Vol. 38,P. 2485
专利号:US-9005573-B2 优先权日:2011-12-22 标 题:Layered conversion synthesis of zeolites 发明人:NICHOLAS CHRISTOPHER P; MILLER MARK A 权利人:UOP LLC 摘要:A new synthesis technique has been developed to prepare a family of coherently grown composites of at least two zeotypes. Examples of these composites are represented by the empirical formula.n nNa n M m k+ T t Al 1-x E x Si y O z n nwhere “nâ€? is the mole ratio of Na to (Al+E), M represents at least one metal of zinc, Group 1, Group 2, Group 3 and the lanthanide series of the periodic table, and any combination thereof, “mâ€? is the mole ratio of M to (Al+E), “kâ€? is the average charge of the metal or metals M, T is the organic structure directing agent or agents, “tâ€? is the mole ratio of N from the organic structure directing agent or agents to (Al+E), and E is a framework element such as gallium. The synthesis technique is the Layered Conversion Synthesis technique.
专利号:US-2023111600-A1 优先权日:2019-12-17 标题 :Polymeric fatty acid compounds for the treatment of fibrous amino acid-based substrates, especially hair 发明人:WAGNER ROLAND; STREICHER KATHARINA; ROHMANN LAURA; WENSKE CHRISTIAN; HAVELI SHRUTISAGAR DATTATRAYA 权利人:MOMENTIVE PERFORMANCE MAT GMBH 摘要:The present invention is directed at mono-, di- or polyquaternary ammonium compounds of the formula (I) wherein x is 1 to 50, and F can be the same or different and is represented by the general formula (II) wherein at least one of the optionally substituted and optionally functional-group-containing hydrocarbon radicals R 1 , R 2 , R 3 , R 4 or R 5 contains at least one estolide moiety comprising two or more ester or amide moieties. The invention also relates to a process for the synthesis of such compounds, the use of the compounds in cosmetic formulations for skin and hair care, cosmetic compositions for the treatment of fibers, and compositions containing one or more of the compounds for the treatment of hair.
专利号:US-2023303487-A1 优先权日:2020-07-31 标 题 :Process for preparation of mesotrione and its intermediates 发明人:PANIRAJ A S; KUMAR SURESH D; S V R ADITHYA 权利人:RALLIS INDIA LTD 摘要:The present disclosure provides a new and improved process for preparation of intermediate compounds and synthesis of mesotrione therefrom. The present disclosure provides an economical, efficient and eco-friendly process for preparation of mesotrione.
专利号:US-2016073631-A1 优先权日:2013-03-04 标 题 :Process for the preparation of dihydropyrrole derivatives 发明人:EL QACEMI MYRIEM; SMITS HELMARS; CASSAYRE JEROME YVES; MULHOLLAND NICHOLAS PHILLIP; RENOLD PETER; GODINEAU EDOUARD; PITTERNA THOMAS 权利人:SYNGENTA PARTICIPATIONS AG; SYNGENTA LTD 摘要:The present invention provides stereoselective processes for the preparation of compounds of formula (I) n n n n n n n n n n n n wherein n P is phenyl, naphthyl, a 6-membered heteroaryl group containing one or two nitrogen atoms as ring members, or a 10-membered bicyclic heteroaryl group containing one or two nitrogen atoms as ring members, and wherein the phenyl, naphthyl and heteroaryl groups are optionally substituted; n R 1 is chlorodifluoromethyl or trifluoromethyl; n R 2 is optionally substituted aryl or optionally substituted heteroaryl; n n is 0 or 1; n including the process comprising n (a-i) reacting a compound of formula II n n n n n n n n n n n n n n n n wherein P, R 1 and R 2 are as defined for the compound of formula I; n with nitromethane in the presence a chiral catalyst to give a compound of formula III n n n n n n n n n n n n n n n n wherein P, R 1 and R 2 are as defined for the compound of formula I; and n (a-ii) reductively cyclising the compound of formula III to give the compound of formula I. n n n n n The invention also provides intermediates useful for processes for the synthesis of compounds of formula (I).
专利号:US-4143050-A 优先权日:1977-01-05 标题 :Manufacture of 3-halosulfonylthiophene-carboxylic acid compounds 发明人:ROSSY PHILLIP A; HOFFMANN WERNER; MUELLER NORBERT 权利人:BASF AG 摘要:3-Halosulfonylthiophene-carboxylic acid compounds are manufactured by reacting 3-ketothiophane-carboxylic acid compounds with sulfonic acid compounds, reacting the end product from the 1st reaction stage with alkali metal polysulfides, reacting the end product from the 2nd stage with a dehydrogenating agent and finally reacting the end product from the 3rd stage with halogen and water. The products are starting compounds for the manufacture of drugs, dyes and crop protection agents and have an anti-inflammatory, analgesic and anti-rheumatic action. In particular, the end products I are starting materials for the manufacture of sweeteners which are non-toxic and free from an after-taste, flavor-improving agents, diabetic aids and feedstuffs, and provide the means of a simple and economical synthesis of thiophene-saccharins.
专利号:US-2015158020-A1 优先权日:2013-12-11 标题:Synthesis of zeolites using an organoammonium compound 发明人:NICHOLAS CHRISTOPHER P; MILLER MARK A 权利人:UOP LLC 摘要:A method for synthesizing a zeolite includes the steps of: (a) preparing an aqueous mixture comprising water, a substituted hydrocarbon and an amine; (b) reacting the aqueous mixture; (c) obtaining a solution comprising an organoammonium product; (d) forming a reaction mixture including reactive sources of M, Al, Si, optionally seeds of a layered material L, and the solution, wherein M is a metal; and (e) heating the reaction mixture to form the zeolite. The substituted hydrocarbon can be an α,ω-dihalogen substituted alkane, and the amine is preferably essentially incapable of undergoing pyramidal inversion.
参考标题:An Efficient And Simple Aqueous N-Heterocyclization Of Aniline Derivatives: Microwave-Assisted Synthesis Of N-Aryl Azacycloalkanes 作者:Yuhong Ju,Rajender S. Varma |发布日期:2005.6.1 摘要:[reaction: See Text] An Efficient And Clean Synthesis Of N-Aryl Azacycloalkanes From Alkyl Dihalides And Aniline Derivatives Has Been Achieved Using Microwave Irradiation In An Aqueous Potassium Carbonate Medium. The Phase Separation Can Simplify The Product Isolation And Reduce Usage Of Volatile Organic Solvents.
合成参考文献
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