CAS: 534-59-8; 2-Butylmalonic Acid

相似化合物

2612-26-2 133-08-4 616-62-6

上下游产品

丁基丙二酸二甲酯 Dimethyl 2-Butylmalonate 39520-22-4
正丁基丙二酸二乙酯 Diethyl Butylmalonate 133-08-4

5-Butyl-2,2-Dimethyl-1,3-Dioxane-4,6-Dione置于盐酸体系中,化学反应 0.05H,以95%的收率获得产物丁基丙二酸
参考文献:Helavi; Solabannavar; Desai,Journal Of Chemical Research-Part S,2003,# 3,P. 174-175
标题:Helavi; Solabannavar; Desai,Journal Of Chemical Research-Part S,2003,# 3,P. 174-175

专利信息

专利号:US-4895922-A
优先权日:1988-05-05
标 题 :Low temperature synthesis of polyesteramides
发明人：OGATA NAOYA
权利人:GOODYEAR TIRE & RUBBER
摘要:This invention disclosed a process for the synthesis of polyesteramides. By utilizing the phosphorus containing catalyst systems of the present invention, such polyesteramides can be synthesized at relatively low temperatures. The present invention specifically discloses a process for the synthesis of a polyesteramide which comprises polymerizing at least one diamine, at least one diol, and at least one dicarboxylic acid in the presence of (1) at least one acid acceptor; (2) at least one halogenated organic compound; and (3) at least one phosphorus containing compound selected from the group consisting of (a) triphenylphosphine, (b) triphenylphosphine oxide, (c) triphenylphosphine sulfide, (d) polymeric agents having pendant diphenylphosphine groups, (e) silicon-phosphorus compositions which contain at least one divalent oxygen atom which is bonded directly to a tetravalent silicon atom and a trivalent or pentavalent phosphorus atom; (f) compounds with the structural formula (C 6 H 5 ) 3 P=N-R, wherein R is a hydrogen atom or an alkyl group containing from 1 to 10 carbon atoms; and (g) compounds with the structural formula (C 6 H 5 )PR 1 R 2 wherein R 1 and R 2 can be the same or different, wherein R 1 is selected from the group consisting of alkyl groups containing from 1 to 10 carbon atoms and phenyl groups, and wherein R 2 is an alkyl group containing from 1 to 10 carbon atoms.

专利号:US-4923839-A
优先权日:1987-02-05
标题:Low temperature synthesis of condensation polymers
发明人：OGATA NAOYA
权利人:GOODYEAR TIRE & RUBBER
摘要:Condensation polymers of high molecular weight, such as polyesters, polyureas, and polyamides, are usually prepared at temperatures of 200° C. or greater. However, by utilizing the catalyst systems of the present invention, condensation polymers can be synthesized at much lower temperatures. The polycondensation catalyst systems of the present invention are particularly useful for synthesizing aliphatic polyesters, such as polyethylene terephthalate, from dicarboxylic acids and aliphatic glycols. The present invention more specifically discloses a process for the synthesis of an aliphatic polyester comprising polymerizing at least one dicarboxylic acid with at least one aliphatic glycol in the presence of (1) at least one phosphorus containing compound which contains at least one trivalent or pentavalent phosphorus atom which is bonded directly to at least one phenyl group, (2) an acid acceptor, and (3) at least one halogenated organic compound. It is preferred to utilize a polymeric agent having bound acid acceptor groups as the acid acceptor in the process of the present invention.

专利号:US-4843053-A
优先权日:1987-02-05
标 题 :Low temperature synthesis of condensation polymers
发明人：OGATA NAOYA
权利人:GOODYEAR TIRE & RUBBER
摘要:Condensation polymers of high molecular weight, such as polyesters, polyureas, and polyamides, are usually prepared at temperatures of 200° C. or greater. However, by utilizing the catalyst systems of the present invention, condensation polymers can be synthesized at much lower temperatures. The polycondensation catalyst systems of the present invention are particularly useful for synthesizing aliphatic polyesters, such as polyethylene terephthalate, from dicarboxylic acids and aliphatic glycols. The present invention more specifically discloses a process for the synthesis of an aliphatic polyester comprising polymerizing at least one dicarboxylic acid with at least one aliphatic glycol in the presence of (1) at least one phosphorus containing compound which contains at least one trivalent or pentavalent phosphorus atom which is bonded directly to at least one phenyl group, (2) an acid acceptor, and (3) at least one halogenated organic compound. It is preferred to utilize a polymeric agent having bound acid acceptor groups as the acid acceptor in the process of the present invention.

专利号:US-4996178-A
优先权日:1987-02-05
标题 :Low temperature synthesis of condensation polymers
发明人：OGATA NAOYA
权利人:GOODYEAR TIRE & RUBBER
摘要:Condensation polymers of high molecular weight, such as polyesters, polyureas, and polyamides, are usually prepared at temperatures of 200° C. or greater. However, by utilizing the catalyst systems of the present invention, condensation polymers can be synthesized at much lower temperatures. The polycondensation catalyst systems of the present invention are particularly useful for synthesizing aliphatic polyesters, such as polyethylene terephthalate, from dicarboxylic acids and aliphatic glycols. The present invention more specifically discloses a process for the synthesis of an aliphatic polyester comprising polymerizing at least one dicarboxylic acid with at least one aliphatic glycol in the presence of (1) at least one phosphorus containing compound which contains at least one trivalent or pentavalent phosphorus atom which is bonded directly to at least one phenyl group, (2) an acid acceptor, and (3) at least one halogenated organic compound. It is preferred to utilize a polymeric agent having bound acid acceptor groups as the acid acceptor in the process of the present invention.

专利号:US-4804730-A
优先权日:1987-02-05
标 题 :Process for producing an aliphatic polyester by polymerizing dicarboxylic acid and glycol in the presence of phosphorus or silicon-phosphorus compound acid acceptor and halogenated organic compound
发明人：OGATA NAOYA
权利人:GOODYEAR TIRE & RUBBER
摘要:Condensation polymers of high molecular weight, such as polyesters, polyureas, and polyamides, are usually prepared at temperatures of 200° C. or greater. However, by utilizing the catalyst systems of the present invention, condensation polymers can be synthesized at much lower temperatures. The polycondensation catalyst systems of the present invention are particularly useful for synthesizing aliphatic polyesters, such as polyethylene terephthalate, from dicarboxylic acids and aliphatic glycols. The present invention more specifically discloses a process for the synthesis of an aliphatic polyester comprising polymerizing at least one dicarboxylic acid with at least one aliphatic glycol in the presence of (1) at least one phosphorus containing compound which contains at least one trivalent or pentavalent phosphorus atom which is bonded directly to at least one phenyl group, (2) an acid acceptor, and (3) at least one halogenated oganic compound. It is preferred to utilize a polymeric agent having bound acid acceptor groups as the acid acceptor in the process of the present invention.

专利号:US-7060818-B2
优先权日:2003-02-21
标题:Synthesis of macrocyclic tetraamido compounds and new metal insertion process
发明人：HORWITZ COLIN P; GHOSH ANINDYA
权利人:UNIV CARNEGIE MELLON
摘要:An improved method of synthesizing a macrocyclic tetraamido compound includes protecting the amino portion of an amino carboxylic acid to form a protected amino carboxylic acid; exposing the protected amino carboxylic acid to a first solvent, preferably a hydrocarbon solvent, such as toluene or 1,2-dichloroethane, dichloromethane, dibromomethane and 1,2-dibromoethane. The carboxylic acid portion of the protected amino carboxylic acid is then converted to an activated carboxylic acid by one of esterification or acid halide formation, to form a protected amino activated carboxylic acid derivative. The protected amino activated carboxylic acid derivative is reacted with a diamine in the presence of a second solvent, such as THF or ,2-dichloroethane, dichloromethane, dibromomethane and 1,2-dibromoethane, to form a protected diamide diamine intermediate. Following deprotection, the diamide diamine intermediate is reacted with an activated diacid, such as an activated malonate, oxalate or succinate derivative to form the macrocyclic tetraamido compound. The macrocyclic tetraamido compound may further be complexed with a transition metal.