CAS: 4904-61-4; 1,5,9-Cyclododecatriene

相似化合物

1295-35-8 706-31-0 13393-64-1

上下游产品

CAS号106-99-0 丁二烯 | CAS号292638-84-7 phenylene-ethylene | CAS号15229-79-5 cyclododeca-4,8... | CAS号947-04-6 ω-月桂精内酰胺 | CAS号1724-39-6 环十二醇 | CAS号943-93-1 9,10-环氧-1,5-环十二碳二烯 | CAS号830-13-7 环十二酮 | CAS号294-62-2 环十二烷 | CAS号1501-82-2 环十二烯 | CAS号1502-04-1 cyclododeca-1,5... | CAS号286-99-7 1,2-环氧环十二烷 | CAS号2855-27-8 1,2,4-三乙烯基环己烷(异...

📜1,3-丁二烯置于ethylaluminum Sesquichloride,氨,水,四氯化钛体系中,用 苯 作为反应溶剂,46.0~60.0 °C,200.0 Kpa 条件下,反应生成 1,5,9-环十二烷三烯,Polybutadiene
参考文献:Process For Preparing Cyclododecatriene
标题:Process For Preparing Cyclododecatriene
摘要:采用催化剂体系和溶剂,在连续或间歇过程中通过丁二烯三聚制备环十二烯,得到的粗环十二烯可以通过蒸馏分离.同时,产生的环辛二烯也可以从粗产品中分离出来.

专利信息

专利号:US-5739358-A
优先权日:1996-10-03
标题:Synthesis of acetogenins
发明人：HOYE THOMAS R; YE ZHIXIONG
权利人:UNIV MINNESOTA
摘要:A method for the synthesis of bis-tetrahydrofuranyl annonaceous acetogenins, including the natural products and analogs thereof, is provided which proceeds by the Pd-mediated coupling of a bis-tetrahydrofuranyl-subunit comprising a terminal alkyne, with a (C4)-hydroxybutenolide subunit comprising a terminal vinyl iodide, followed by selective reduction of the resulting enzyme.

专利号:US-6946533-B2
优先权日:2002-08-01
标 题 :Synthesis of macrocyclic polymers by ring insertion polymerization of cyclic olefin monomers
发明人：GRUBBS ROBERT; BIELAWSKI CHRIS; BENITEZ DIEGO
权利人:CALIFORNIA INST OF TECHN
摘要:A method for synthesizing cyclic polymers using transition metal alkylidene complexes as reaction catalysts is provided, wherein the complexes contain a cyclic group. Polymerization is carried out on the catalyst, using cyclic olefin monomers that undergo ring insertion polymerization, and no linear intermediates are generated. Following completion of polymerization, the cyclic polymer detaches from the complex via an intramolecular chain transfer reaction and the catalytic complex is regenerated. The invention also provides novel transition metal alkylidene complexes useful as catalysts in the aforementioned process, as well as novel cyclic hydrocarbons.

专利号:US-6391978-B1
优先权日:2000-12-14
标题 :Process for the synthesis of hydroxyl-end group functionalized polybutadienes
发明人：PETERS MARK A
权利人:BAYER AG
摘要:This invention relates to a process for the synthesis and purification of hydroxyl-end group functionalized, linear, non-crosslinked polyolefins without pendant chain branched groups, and specifically to hydroxyl-end group functionalized polybutadienes. The process comprises polymerizing a cyclic olefin monomer with a chain transfer agent in the presence of a suitable catalyst, thereby forming a protected end-group functionalized polyolefin, followed by adding a mixture comprising water and caustic to the protected end-group functionalized polyolefin to remove the protecting groups, thus forming a hydroxyl end-group functionalized, linear, non-crosslinked polyolefin without pendant chain branched groups.

专利号:US-6066705-A
优先权日:1995-08-31
标 题 :Vapor phase synthesis of cis-1, 4-Polyisoprene
发明人：CALDERON NISSIM; CASTNER KENNETH FLOYD; COLVIN HOWARD ALLEN; MUSE JR JOEL
权利人:GOODYEAR TIRE & RUBBER
摘要:By utilizing the vapor phase polymerization techniques of the present invention, numerous distinct and highly beneficial advantages are realized. For instance, cis-1,4-polyisoprene rubber and high cis-1,4-polybutadiene rubber having a consistent and controllable molecular weight can be easily and practically prepared without utilizing a solvent. The subject invention more specifically discloses a method for vapor phase polymerizing isoprene into cis-1,4-polyisoprene in a process comprising the steps of: (1) charging into a reaction zone said isoprene and a preformed catalyst system which is made by reacting an organoaluminum compound with titanium tetrachloride, preferably in the presence of at least one ether; wherein the isoprene is maintained in the vapor phase in said reaction zone by a suitable combination of temperature and pressure; (2) allowing said isoprene to polymerize into cis-1,4-polyisoprene at a temperature within the range of about 35 DEG C. to about 70 DEG C.; and (3) withdrawing said cis-1,4-polyisoprene from said reaction zone. It has been determined that gel formation can be reduced by conducting the polymerization of isoprene monomer in the presence of a diarylamine, such as para-styrenated diphenylamine.

专利号:US-5859156-A
优先权日:1995-08-31
标 题 :Vapor phase synthesis of rubbery polymers
发明人：CALDERON NISSIM; MUSE JR JOEL; COLVIN HOWARD ALLEN; CASTNER KENNETH FLOYD
权利人:GOODYEAR TIRE & RUBBER
摘要:By utilizing the vapor phase polymerization techniques of the present invention, numerous distinct and highly beneficial advantages are realized. For instance, cis-1,4-polyisoprene rubber and high cis-1,4-polybutadiene rubber having a consistent and controllable molecular weight can be easily and practically prepared without utilizing a solvent. The subject invention more specifically discloses a method for vapor phase polymerizing isoprene into cis-1,4-polyisoprene in a process comprising the steps of: (1) charging into a reaction zone said isoprene and a preformed catalyst system which is made by reacting an organoaluminum compound with titanium tetrachloride, preferably in the presence of at least one ether; wherein the isoprene is maintained in the vapor phase in said reaction zone by a suitable combination of temperature and pressure; (2) allowing said isoprene to polymerize into cis-1,4-polyisoprene in said reaction zone at a temperature within the range of about 0 DEG C. to about 100 DEG C. in the presence of a diarylamine, wherein said reaction zone is a horizontal, stirred reactor of substantially circular cross section containing a centrally-located drive shaft extending longitudinally through said reactor to which are attached a plurality of adjacently located paddles, which paddles cause essentially no forward or backward movement of the cis-1,4-polyisoprene contained in said reactor; and (3) withdrawing said cis-1,4-polyisoprene from said reaction zone.

专利号:US-4303593-A
优先权日:1979-06-16
标 题 :Process for the dimerization of hexafluoropropene oxide
发明人：KUEHNE GERHARD
权利人:HOECHST AG
摘要:In the dimerization of hexafluoropropene oxide to give oligomeric acid fluorides of the formula the ratio of the oligomeric constituents formed is directed, in an improved manner, towards the formation of the dimer (n=0) if the reaction is carried out in the presence of a catalyst system which consists of a mixture of a copper (I) compound and a copper (II) compound mixed with a complex-forming agent from the group of the nitriles, isocyanides, tertiary phosphines and cyclic hydrocarbons with 6 to 12 ring atoms and 2 to 3 double bonds in the ring, and an aprotic organic solvent. The dimer is an intermediate product in the synthesis of perfluoropropyl perfluorovinyl ether, the latter being employed as a comonomer in fluorine-containing copolymers.