CAS: 51590-67-1; Butyltin Oxide

相似化合物

2273-43-0 304671-74-7

上下游产品

CAS号36443-68-2 抗氧剂245 | CAS号2082-79-3 抗氧剂1076 | CAS号6683-19-8 抗氧剂1010

专利信息

专利号:US-5808019-A
优先权日:1994-12-19
标题 :Intermediate compounds for the synthesis of glycolipids
发明人：HASEGAWA AKIRA; KISO MAKOTO; ISOGAI YUKIHIRO; KITAMURA SEIICHI; UEDA HIROSHI
权利人:TOA BOSHOKU KABUSHIKI KAISHA
摘要:The invention provides important intermediate compounds for the synthesis of acidic glycolipids which are identical with the glycolipid antigens isolated from the acidic glycolipid fractions of peripheral nerve and embryonic central nervous system and preparation methods thereof. By the adoption of the present intermediate compounds, sulfation of 3-hydroxyl group of end glucuronic acid portion of the acidic glycolipid can be quite easily carried out and total synthetic yield be greatly improved.

专利号:US-5426202-A
优先权日:1993-07-30
标题 :Alkyl tin compounds, their synthesis and electrically conductive and IR-reflecting layers
发明人：VALLERIEN SVEN-UWE
权利人:GOLDSCHMIDT AG TH
摘要:The invention relates to compounds of the general formula SnR 1 a R 2 b R 3 c , in which R 1 is an alkyl group with 1 to 4 carbon atoms, R 2 is an acetate group, R 3 is a trifluoroacetate group, a has a value of 1 or 2, b has a value of 1 or 2 and c has a value of 1 or 2, with the proviso that the sum of a+b+c=4. The invention also relates to a method for the synthesis of these compounds and to a material for producing electrically conductive and infrared-reflective fluorine-doped tin oxide layers on glass, glass ceramic and/or enamel surfaces, the material containing tin compounds of the formula SnR 1 a R 2 b R 3 c or mixtures of these tin compounds, the mixture corresponding to the general formula SnR 1 x R 2 y R 3 z , wherein x has a numerical value of 1 to 2, y a numerical value of 0.1 to 2.9 and z a numerical value of 0.1 to 2.9, the sum of x+y+z being 4, dissolved in a polar organic solvent.

专利号:WO-2024213675-A1
优先权日:2023-04-13
标题:Process for the synthesis of a glycerol polyester
发明人：SUTTER MARC; DRONET SÉVERIN
权利人:MICHELIN & CIE
摘要:The invention relates to a process for preparing a polyester of a glycerol and a carboxylic diacid, comprising (a) bringing the monomers comprising at least the glycerol and a carboxylic diacid into contact in the presence of water, at a temperature of less than 100°C in an inert atmosphere, with a glycerol/carboxylic diacid molar ratio ranging from 0.5/1 to 10/1; (b) esterification in an inert atmosphere at a temperature above 110° C; (c) vacuumizing the reaction medium at a pressure of less than 100 mbara and at a temperature above 110° C; and (d) maintaining the vacuum and a temperature higher than 110°C in order to perform a polycondensation process, which method comprises the introduction of a polycondensation catalyst at the end of the esterification of step (b), before the vacuumizing of step (c) or after the vacuumizing of step (c), in an amount of less than or equal to 5000 ppm relative to the total mass of monomers, said catalyst being a tin-based food-grade catalyst selected from organotin compounds having a carboxyl function (-C(O)OH), organotin compounds having a (-Sn(O)OH) function, and monobutyltin tris(2-ethylhexanoate). Such a process makes it possible in particular to synthesize a glycerol polyester having a residual monomer content of less than 5% by weight of the weight of the polymer, a high number-average molar mass Mn of greater than 2500 g/mol, a dispersity (Mw/Mn) of less than or equal to 10, and less than 15 mol % of units (1,2,3-triacylglyceride) relative to all the units of the polymer.

专利号:US-5663342-A
优先权日:1994-03-08
标 题 :2-chloro and 2-bromo derivatives of 1,5-iminosugars
发明人：BARTA THOMAS E; MUELLER RICHARD A
权利人:SEARLE & CO
摘要:Novel 2-chloro and 2-bromo derivatives of 1,5-iminosugars are disclosed, especially such derivatives of 1,5-dideoxy-1,5-imino-D-glucitol. These compounds are useful inhibitors of glucosidase enzymes and also are useful as antiviral agents and as intermediates for the synthesis of other enzyme inhibitors and antiviral compounds.

专利号:US-6376693-B2
优先权日:2000-08-02
标 题 :Synthesis of organotin oxides
发明人：GROSSMAN RICHARD F
权利人:HAMMOND GROUP INC
摘要:Organotin oxides are synthesized by reacting powdered tin metal with an alcohol at elevated temperatures on the order of about 200-400° C. Monoalkyltin, dialkyltin and trialkyltin oxides are produced in quantitative yields according to the method.

专利号:EP-3491044-B1
优先权日:2016-07-27
标 题 :Method of regioselective synthesis of polyesters from asymmetric diols