合成目标产物 N-Tert-Butyl-2-Benzothiazolesulfenamide 主要起始原料 2-Mercaptobenzothiazole And Tert-Butylamine
149-30-4 + 75-64-9 = 95-31-8 反应条件:1.1 Catalysts: Cobalt Phthalocyanine Solvents: Water; 20 Min,35 °C; 15 S,65 °C; 30 Min,55 °C 标题:Simple And Cost-Effect Preparation System And Method Of N-Tert-Butyl-2-Benzothiazole Sulfenamide 参考文献:China]
149-30-4 + 75-64-9 = 95-31-8 反应条件:1.1 Rt; Rt -> 60 °C; 60 °C -> 40 °C1.2 Reagents: Hydrogen Peroxide Solvents: Water; 40 °C 标题:Preparation Method Of Accelerator Tbbs From Accelerator M Tert-Butyl Ammonium Salt By Oxidizing With Hydrogen Peroxide 参考文献:China]
149-30-4 + 75-64-9 = 95-31-8 反应条件:1.1 Reagents: Sodium Hypochlorite Catalysts: Sodium Acetate,Sodium Bicarbonate,Potassium Carbonate,Disodium Phosphate Solvents: Water; 25 - 50 °C 标题:Method For Improving Synthesis Yield Of Tbbs As Rubber Vulcanization Accelerator 参考文献:China]
149-30-4 + 75-64-9 = 95-31-8 反应条件:1.1 Reagents: Hydrogen Peroxide Solvents: Water; 2.0 H,Rt 标题:Method For Manufacture Of High-Yield Vulcanization Accelerator Ns By Two-Step Method With Hydrogen Peroxide As Oxidant 参考文献:China
2-巯基苯并噻唑 以80.5%的收率获得产物n-叔丁基-2-苯并噻唑次磺酰胺 参考文献:Process For The Production Of Sulfenamides 标题:Process For The Production Of Sulfenamides 摘要:苯并噻唑-2-磺酰胺是通过将2-巯基苯并噻唑和一种一级或二级胺与氧气在催化剂的存在下反应制备而成的,例如金属酞菁,在反应介质中包括(i)一种胺和水的混合物,其中反应开始时水的量占混合物重量的0.2%至20%,或(II)在(i)中定义的混合物中加入一种与混合物相容的惰性有机溶剂稀释,溶剂的重量可以是混合物的重量的两倍.
专利号:US-8137457-B2 优先权日:2004-07-23 标题 :One-pot synthesis of high-quality metal chalcogenide nanocrystals without precursor injection 发明人:CAO YUNWEI CHARLES; CHEN OU 权利人:CAO YUNWEI CHARLES; CHEN OU; UNIV FLORIDA 摘要:A method of forming monodisperse metal chalcogenide nanocrystals without precursor injection, comprising the steps of: combining a metal source, a chalcogen oxide or a chalcogen oxide equivalent, and a fluid comprising a reducing agent in a reaction pot at a first temperature to form a liquid comprising assembly; increasing the temperature of the assembly to a sufficient-temperature to initiate nucleation to form a plurality of metal chalcogenide nanocrystals; and growing the plurality of metal chalcogenide nanocrystals without injection of either the metal source or the chalcogen oxide at a temperature equal to or greater than the sufficient-temperature, wherein crystal growth proceeds substantially without nucleation to form a plurality of monodisperse metal chalcogenide nanocrystals. Well controlled monodispersed CdSe nanocrystals of various sizes can be prepared by choice of the metal source and solvent system.
专利号:US-7081504-B2 优先权日:2004-08-30 标 题:Synthesis of 1,4-polybutadiene 发明人:RACHITA MICHAEL JOSEPH; JOHNSON SCOTT EDWARDS 权利人:GOODYEAR TIRE & RUBBER 摘要:This invention is based upon the unexpected discovery that alkylated diphenylamines can be used in conjunction with nickel based catalyst systems which contain (a) an organonickel compound, (b) an organoaluminum compound, and (c) a fluorine containing compound to produce cis-1,4-polybutadiene having reduced molecular weight and an increased level of branching. This results in the cis-1,4-polybutadiene exhibiting good processability without sacrificing cold flow characteristics. Additionally, the alkylated diphenylamine which remains in the rubber acts in a manner which provides it with antioxidant protection. In other words, the use of alkylated diphenylamines accomplishes the three major objectives that are realized by employing para-styrenated diphenylamines (reduced molecular weight, regulated polymer macrostructure through branching and antidegradant protection). However, the utilization of alkylated diphenylamines, unlike para-styrenated diphenylamines, offers the additional advantage of being soluble in aliphatic solvents. By virtue of this increased level of solubility in aliphatic solvents, such as hexane, alkylated diphenylamines can be employed at greatly reduced levels of aromatic solvents. Likewise, when mixed catalyst streams containing alkylated diphenyl amines are combined precipitation is minimized compared to para-styrenated diphenylamine significantly improving issues related to fouling. The subject invention more specifically discloses a process for producing cis-1,4-polybutadiene having a reduced molecular weight and improved processability which comprises polymerizing 1,3-butadiene in the presence of (a) an organonickel compound, (b) an organoaluminum compound, (c) a fluorine containing compound, and (d) an alkylated diphenylamine; wherein the alkylated diphenylamine has alkyl groups that contain from 2 to 18 carbon atoms, and wherein the organoaluminum compound and the fluorine containing compound are brought together in the presence of the alkylated diphenylamine.
专利号:WO-2014118073-A1 优先权日:2013-01-29 标 题 :Polysulfide polyols, their production and use in the synthesis of polyurethanes 发明人:BALBO BLOCK MARCO; RHUDY KEVIN; FLECKENSTEIN CHRISTOPH 权利人:BASF SE 摘要:The present invention relates to sulfur containing polyols, a process for their production by reaction of at least one unsaturated alcohol A with elemental sulfur, wherein the unsaturated alcohol A has only one carbon-carbon double bond-unsaturation per molecule. The sulfur containing polyols are used in the production of polyurethanes, in particular rigid foam polyurethanes, for high-temperature pipe insulation applications.
专利号:US-11098145-B2 优先权日:2015-05-12 标题:Method for the synthesis of a copolymer, copolymer, rubber mixture, and use thereof 发明人:HERZOG KATHARINA; MUELLER LENA; RECKER CARLA; PRUSS NOA; CONRAD CATHRIN SONJA; VANA PHILLIPP 权利人:CONTINENTAL REIFEN DEUTSCHLAND GMBH 摘要:Disclosed are processes for preparing a copolymer, a copolymer prepared by the process, a sulfur-crosslinkable rubber mixture, and the use of the sulfur-crosslinkable rubber mixture for production of motor vehicle tires. In one embodiment, the monomer has the formula: A-S-P, wherein A is a chemical group containing at least one aliphatic double bond, S is a sulfur atom, and P is a protecting group.
专利号:US-10494336-B2 优先权日:2015-05-12 标题:Monomer for copolymerization with alkenes, dienes, vinyl compounds and/or vinylidene compounds, method for the synthesis of a copolymer, copolymer, rubber mixture and use thereof 发明人:HERZOG KATHARINA; MUELLER LENA; RECKER CARLA; PRUSS NOA; CONRAD CATHRIN SONJA; VANA PHILLIPP 权利人:CONTINENTAL REIFEN DEUTSCHLAND GMBH 摘要:Disclosed are monomers for copolymerization with alkenes, dienes, vinyl compounds, and/or vinylidene compounds, a process for preparing a copolymer, a copolymer prepared by the process, a sulfur-crosslinkable rubber mixture, and the use of the sulfur-crosslinkable rubber mixture for production of motor vehicle tires. In one embodiment, the monomer has the formula A-S—P, wherein A is a chemical group containing at least one Câ•?C aliphatic double bond, S is a sulfur atom, and P is a protecting group.
专利号:US-3726889-A 优先权日:1971-01-28 标题:Synthesis of 2,2'-iminobis(benzothiazoles) 发明人:D AMICO J 权利人:MONSANTO CO 摘要:2,2''-IMINOBIS(BENZOTHIAZOLES) OF THE FORMULA (X-BENZOTHIAZOL-2-YL)2-NH WHEREIN X IS HYDROGEN, ALKYL, ALKOXY, NITRO, HALO OR HYDROXY ARE PREPARED BY REACTING A 2-AMINOBENZENTHIOL WITH S,S''-DI-(LOWER ALKYL)CYANOIMIDODITHIOCARBONATE.
摘要:International Polymer Science and Technology., 3(93), 1976 摘要:U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals., NX#02241 摘要:IARC; Monographs on the evaluation of Carcinogenic Risk of Chemicals to Humans Vol 28, p.282 (1982) 摘要:Chen, T.; Li, C.; Han, L.-B., Science of Synthesis: Cross-Dehydrogenative Coupling, (2023) nan, 534.