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CAS号96-49-1 碳酸乙烯酯 | CAS号67-56-1 甲醇 | CAS号79-22-1 氯甲酸甲酯 | CAS号57-13-6 尿素 | CAS号124-38-9 二氧化碳 | CAS号598-55-0 氨基甲酸甲酯 | CAS号201230-82-2 carbon monoxide | CAS号109-87-5 甲缩醛 | CAS号629-05-0 1-辛炔 | CAS号3186-52-5 Thi°Carbonic ac... | CAS号6086-21-1 1-甲基-1,2,4-三氮唑 | CAS号10570-40-8 4-甲基-1,2,4-三唑 | CAS号456-49-5 间氟苯甲醚 | CAS号606-45-1 2-甲氧基苯甲酸甲酯 | CAS号104-93-8 4-甲基苯甲醚(MSO) | CAS号578-58-5 邻甲基苯甲醚 | CAS号121-98-2 茴香酸甲酯 | CAS号100-66-3 苯甲醚 | CAS号60435-90-7 6-O-甲基麦考酚酸甲酯 | CAS号22071-15-4 酮洛芬

二正丁基氧化锡置于甲醇,二氧化碳体系中,用 甲醇 作为反应溶剂,化学反应生成 碳酸二甲酯
参考文献:二氧化碳与正丁基(苯氧基)-,(烷氧基)-和(氧代)锡烷的反应性:碳酸二甲酯合成的见解
标题:二氧化碳与正丁基(苯氧基)-,(烷氧基)-和(氧代)锡烷的反应性:碳酸二甲酯合成的见解
摘要:该co 2插入一系列丁基(苯氧基)的sn-O的键-,(烷氧基)-,和(氧代)锡烷进行了研究.三丁基衍生物bu 3 Snor(2A,R = Me; 3A,R = I Pr; 4A,R = T Bu; 5A,R = Snbu 3)1定量给出bu 3 Sn(oco 2 R),2B-5B ; 类似的三丁基苯氧基锡烷1的反应性较低.对于二丁基系列bu 2 Sn(or)2,T的空间效应or(8A)中的bu基团在大气压下抑制碳化.与r =我(图6A)或r =我pr(图7A)中,只有一个的sn-Or键的反应,导致卜2的sn(or)(oco 2 R),图6B或7B中.用2-丙醇处理6A在co 2下选择性地提供混合的化合物bu 2 Sn(ome)(oco 2 I Pr).简便的co 2脱嵌是所有化合物的共同特性,在二丁基系列中更容易发生.碳酸盐配体在2B,5B中的化学计量转化或图6B对用mei反应的
DOI:10.1021/om000397F

专利信息

专利号:WO-2021014395-A1
优先权日:2019-07-24
标题:Process for the synthesis of deuterated capsaicin, capsaicinoids and synthetic capsaicin analogs
发明人：ORUGANTI SRINIVAS; AMRUTAPU SRAVANTH KUMAR; SAMPATH MAGESH; SEN SAIKAT
权利人:DR REDDY’S INST OF LIFE SCIENCES
摘要:The present application provides novel processes for the synthesis of deuterated intermediates of capsaicinoids, particularly II, III, IV and V of capsaicinoids, relating to pharmaceutical applications. The invention also provides novel intermediates of compounds of formula IX, XIV, XV, XVI, XVII, XVIII, XX and XXI utilized in the process of making deuterated capsaicin II, III, IV and V.

专利号:US-7247287-B2
优先权日:2003-06-11
标 题 :Synthesis of aluminophosphates and silicoaluminophosphates
发明人：CAO GUANG; SHAH MATU J
权利人:EXXONMOBIL CHEM PATENTS INC
摘要:The invention is directed to a method of synthesising silicoaluminophosphate and aluminophosphate molecular sieves using synthesis templates that contain at least one template of general formula R 1 R 2 N—R 3 , wherein R 1 and R 2 are independently selected from the group consisting of alkyl groups having from 1 to 3 carbon atoms and hydroxyalkyl groups having from 1 to 3 carbon atoms; R 3 is selected from the group consisting of 4- to 8-membered cycloalkyl groups, optionally substituted by 1 to 3 alkyl groups having from 1 to 3 carbon atoms, and 4- to 8-membered heterocyclic groups having from 1 to 3 heteroatoms, said heterocyclic groups being optionally substituted by 1 to 3 alkyl groups having from 1 to 3 carbon atoms and the heteroatoms in said heterocyclic groups being selected from the group consisting of O, N, and S. In particular, the present invention relates to the synthesis of silicoaluminophosphate molecular sieves of the CHA framework type having a low silicon to aluminium atomic ratio.

专利号:US-7901664-B2
优先权日:2008-03-31
标题 :Synthesis of aluminophosphate and metalloaluminophosphate molecular sieves
发明人：CAO GUANG; AFEWORKI MOBAE; SHAH MATU J; MERTENS MACHTELD MARIA
权利人:EXXONMOBIL CHEM PATENTS INC
摘要:In a method of synthesizing an aluminophosphate or metalloaluminophosphate molecular sieve, a synthesis mixture is provided comprising water, a source of aluminum, a source of phosphorus, optionally a source of a metal other than aluminum, a tertiary amine, and an alkylating agent capable of reacting with said tertiary amine to form a quaternary ammonium compound capable of directing the synthesis of said molecular sieve. The synthesis mixture is maintained under conditions sufficient to cause the alkylating agent to react with the tertiary amine to produce the quaternary ammonium compound and to induce crystallization of the molecular sieve.

专利号:US-2014194584-A1
优先权日:2013-01-07
标题 :Process for the synthesis of w-Unsaturated nitrile-acid/ester in which two types of cross metathesis are alternated consecutively swing process
发明人：DUBOIS JEAN-LUC; COUTURIER JEAN-LUC
权利人:ARKEMA FRANCE
摘要:The invention relates to a process for the synthesis of a monounsaturated nitrile-ester (acid) by cross metathesis starting from an unsaturated compound I comprising at least one trivalent nitrile, acid or ester functional group, characterized in that it comprises a stage in which two types of cross metathesis are alternated consecutively:n a first type of cross metathesis cm1 with an acrylic compound II chosen from acrylonitrile, acrylic acid or an acrylic ester, one of the compounds I or II comprising a nitrile functional group and the other of these compounds II or I comprising an acid or ester functional group, and a second type of cross metathesis cm2 with a light C 2 to C 4 alkene compound III, preferably with ethylene. nn The invention also relates to a process for the synthesis of an α,ω-amino ester (acid) obtained by a process comprising a stage in which the two types of cross metathesis defined above are alternated consecutively, followed by a hydrogenation stage.

专利号:US-8445713-B2
优先权日:2007-10-22
标 题 :Catalyst for the synthesis of organic carbonates, process for preparing the same and application thereof
发明人：WERSHOFEN STEFAN; KLEIN STEPHAN; ZHOU ZHIPING; WANG XINKUI; WANG JUNWEI; KANG MAOQING
权利人:WERSHOFEN STEFAN; KLEIN STEPHAN; ZHOU ZHIPING; WANG XINKUI; WANG JUNWEI; KANG MAOQING; BAYER MATERIALSCIENCE AG
摘要:The present invention relates to a catalyst for the synthesis of organic carbonates, the preparation of the catalyst and the application of this catalyst in the synthesis of organic carbonates from reacting urea and hydroxyl group containing compounds. The catalyst provided in this invention is a calcinate of hydrous salt containing rare earth element at a moderate calcining temperature.

专利号:US-6835363-B1
优先权日:2003-08-06
标题:Synthesis of molecular sieves of CHA framework type
发明人：STROHMAIER KARL G
权利人:EXXONMOBIL CHEM PATENTS INC
摘要:The invention is directed to a method of synthesizing aluminophosphate and silicoaluminophosphate molecular sieves and in particular to the synthesis of aluminophosphate and silicoaluminophosphate molecular sieves using the synthesis templates that contain two dimethylamino moieties in combination with hydrogen fluoride. The use of this template in combination with hydrogen fluoride results in good quality SAPO molecular sieves of CHA framework type with low levels of silicon that are produced in relatively short crystallization times.