CAS: 16526-68-4; Cis,Cis-Cyclohexane-1,3,5-Tricarboxylic Acid

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3971-31-1 2305-31-9 2305-30-8

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CAS号554-95-0 均苯三甲酸 | CAS号6998-83-0 顺式,顺式-1,3,5-环己烷... | CAS号28084-34-6 cis,cis-triethy... | CAS号4105-92-4 1,3,5-苯三羧酸三乙酯 | CAS号168280-46-4 (1α,3α,5α)-1,3,... | CAS号6998-83-0 顺式,顺式-1,3,5-环己烷... | CAS号99063-92-0 cyclohexane-1,3...

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-12146136-B2
优先权日:2020-03-26
标题:Synthesis of modified oligonucleotides with increased stability
发明人：KHVOROVA ANASTASIA; ROUX LOà C MAURICE RENÉ JEAN; YAMADA KEN
权利人:UNIV MASSACHUSETTS
摘要:This disclosure relates to the synthesis of novel modified oligonucleotides. The synthesis of novel phosphoramidites are also provided.

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-9868752-B2
优先权日:2012-04-13
标题 :Modular assembly of metal-organic super-containers incorporating calixarenes
发明人：WANG ZHENQIANG; Dai feng-rong
权利人:UNIV OF SOUTH DAKOTA; SOUTH DAKOTA BOARD OF REGENTS
摘要:A new strategy to design container molecules is presented. Sulfonylcalix[4]arenes, which are synthetic macrocyclic containers, are used as building blocks that are combined with various metal ions and tricarboxylate ligands to construct metal-organic ‘super-containers’ (MOSCs). These MOSCs possess both endo and exo cavities and thus mimic the structure of viruses. The synthesis of MOSCs is highly modular, robust, and predictable.