CAS: 67-72-1; Hexachloroethane

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CAS号127-18-4 四氯乙烯 | CAS号56-23-5 四氯化碳 | CAS号79-34-5 四氯乙烷 | CAS号10170-69-1 十羰基二锰 | CAS号75-68-3 1-氯-1,1-二氟乙烷 | CAS号773-14-8 八氟代四氢呋喃 | CAS号355-79-3 2,2,3,3,4,4,5,5... | CAS号87-68-3 六氯-1,3-丁二烯 | CAS号6430-25-7 acetyltriphenyl... | CAS号624-74-8 二碘乙炔 | CAS号60736-71-2 4-甲氧基-3-甲基氯苄 | CAS号150444-93-2 2-氯-3,4-二氟苯甲酸 | CAS号127-18-4 四氯乙烯 | CAS号507-20-0 氯代叔丁烷 | CAS号946061-13-8 1-乙基-2-氯-1n-咪唑 | CAS号56-23-5 四氯化碳 | CAS号1291-32-3 二氯二茂锆 | CAS号126859-53-8 2,4-di-tert-but... | CAS号75-44-5 光气 | CAS号110-81-6 二乙基二硫

四氯乙烯置于copper Dichloride 盐酸,氧气体系中,化学反应生成 六氯乙烷
参考文献:Methane To Olefins
标题:Methane To Olefins
摘要:该规范披露了一种从甲烷生产烯烃(包括乙烯,丙烯和丁烯)的工艺,该工艺包括串联操作的第一,第二和第三反应步骤.在第一反应步骤中,氯化氢,四氯乙烯和氧在催化剂存在下与甲烷反应,产生六氯乙烷和水.在第二反应步骤中,来自第一反应步骤的六氯乙烷与甲烷反应,产生氯甲烷,氯化氢和四氯乙烯.在第三反应步骤中,来自第二反应步骤的氯甲烷反应反应生成所需的烯烃和氯化氢.通过将第二反应步骤中的四氯乙烯和第二,第三反应步骤中的氯化氢回收到第一反应步骤,实现了一个平衡的过程,该过程在氯值方面是自给自足的.

专利信息

专利号:US-2008032964-A1
优先权日:2006-04-10
标题:Process for the synthesis of azetidinone
发明人：KANSAL VINOD K; AHMAD SUHAIL; MARIAPPAN SHANMUGAVEL; TYAGI BHUPENDRA; PERLMAN NURIT; LE PAIH JACQUES; ZANOTTI-GEROSA ANTONIO
权利人:KANSAL VINOD K; AHMAD SUHAIL; MARIAPPAN SHANMUGAVEL; TYAGI BHUPENDRA; PERLMAN NURIT; LE PAIH JACQUES; ZANOTTI-GEROSA ANTONIO
摘要:Provided are intermediates useful for the synthesis of hydroxyl-alkyl substituted azetidinones, processes of their preparation, and processes for the synthesis of certain hydroxyl-alkyl substituted azetidinones. Also provided are processes for the synthesis of 1-(4-fluorophenyl)-3(R)-[3-(4-fluorophenyl)-3(S)-hydroxypropyl]-4(S)-(4-hydroxyphenyl)-2-azetidinone, or ezetimibe.

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-6271379-B1
优先权日:2000-03-08
标题:Intermediates useful for the synthesis of huperzine A
发明人：TUECKMANTEL WERNER; KOZIKOWSKI ALAN P
权利人:UNIV GEORGETOWN
摘要:Intermediates useful for the synthesis of huperzine A represented by the structures below, n and methods for their synthesis, wherein: n R 1 is lower alkyl, benzyl, or substituted benzyl; n X is a suitable leaving group; n Y is an electron withdrawing group that can subsequently be converted into an amino group; n one broken line is present as a carbon—carbon bond and the other broken line is absent, where the broken line forms an unconjugated carbon—carbon double bond, which double bond may be endocyclic whereby n is 3 or the double bond may be exocyclic whereby n is 2.

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-8084630-B2
优先权日:2007-05-31
标 题 :Process for the synthesis of ramelteon and its intermediates
发明人：KANSAL VINOD KUMAR; MISTRY DHIRENKUMAR N; VASOYA SANJAY L; RAFILOVICH MICHAL; MOHA-LERMAN ELENA BEN; LIFSHITZ-LIRON REVITAL
权利人:KANSAL VINOD KUMAR; MISTRY DHIRENKUMAR N; VASOYA SANJAY L; RAFILOVICH MICHAL; MOHA-LERMAN ELENA BEN; LIFSHITZ-LIRON REVITAL; TEVA PHARMA
摘要:The present invention provides processes and intermediates for the synthesis of ramelteon.