CAS: 103-34-4; N,N'-Dimorpholine Disulfide

上下游产品

CAS号110-91-8 吗啉 | CAS号5038-11-9 4-morpholin-4-y... | CAS号2958-89-6 4-Morpholinesul... | CAS号95-32-9 2-(4-吗啉基二硫代)苯并噻唑 | CAS号72087-93-5 morpholinium p-... | CAS号84655-87-8 4-(4-methylphen... | CAS号5962-57-2 bis-(toluene-4-... | CAS号56368-47-9 Morpholine, 4-b...

吗啉置于二氯化二硫,Sodium Hydroxide体系中,用 正己烷,水 用作溶剂,以80%的收率获得促进剂 Dtdm
参考文献:取代的炔丙基n,N-二烷基酰胺基亚砜的[2,3]-σ重排的立体化学过程.[s *,(S)r * ]-4-[(1,4,4-三甲基-1,2-戊二烯基)亚磺酰基]-吗啉的x射线分子结构.
标题:取代的炔丙基n,N-二烷基酰胺基亚砜的[2,3]-σ重排的立体化学过程.[s *,(S)r * ]-4-[(1,4,4-三甲基-1,2-戊二烯基)亚磺酰基]-吗啉的x射线分子结构.
摘要:通过与在氮原子上的r基团具有代表性尺寸的三个n,N-二烷基氨基亚磺酰氯2反应,已将几种取代的仲炔丙醇(ia-F)转化为相应的非对映异构烯丙亚磺酰胺3A-N和3 'Aj,Lm.它们的比率已经通过1 H NMR光谱法确定,并且发现其比率基本上取决于起始材料的r 1和r 2基团的大小.一种纯非对映异构体3M的立体化学已通过单晶x射线分析确定.
Doi:10.1016/s0040-4020(01)86400-0

专利信息

专利号:US-6184168-B1
优先权日:1997-09-22
标题:Synthesis of 1,4-trans-polybutadiene using a lanthanide organic acid salt catalyst
发明人：LYNCH THOMAS J
权利人:BRIDGESTONE CORP
摘要:The invention provides a catalyst composition, comprising: (a) an organolithium compound; and, (b) an organic acid salt of lanthanide series element; wherein: (1) only components (a) and (b) are required to promote the synthesis of 1,4-trans-polybutadiene; (2) the ratio of component (a) to component (b) is selected to maximize formation of the trans structure of said 1,4-trans-polybutadiene; and, (3) components (a) and (b) are selected for enabling further diblock synthesis. The invention further contemplates a process for using the catalyst to synthesize 1,4-trans-polybutadiene and other polymers and copolymers having trans configuration in the conjugated diene monomer contributed units.

专利号:US-6018007-A
优先权日:1997-09-22
标 题:Synthesis of 1,4-trans-polybutadiene using a lanthanide organic acid salt catalyst

专利号:US-9226876-B2
优先权日:2001-10-19
标 题:Rubber for baby bottle nipples, pacifiers, and syringe plungers
发明人：KERNS MICHAEL LESTER; RACHITA MICHAEL JOSEPH
权利人:KERNS MICHAEL LESTER; RACHITA MICHAEL JOSEPH; GOODYEAR TIRE & RUBBER
摘要:The production of a protein free synthetic polyisoprene which has both low levels of chemical impurities and good physical properties has yet to be realized. It has now been envisioned that the use of neodymium catalyzed polyisoprene will offer the combined advantages of both a clean, as well as, high cis-1,4 polymer. Synthesis of polyisoprene rubber using a neodymium based catalyst system is described. Characterization of the material shows the absence of an ultra high molecular weight fraction and the presence of very high cis-1,4-microstructure. Gum stock and black filled compound studies comparing neodymium polyisoprene with natural rubber, titanium polyisoprene, and lithium polyisoprene have been performed. Results indicate that polyisoprene rubber synthesized using a neodymium catalyst system (Nd—PI) has similar stress-strain and tear properties as synthetic titanium polyisoprene. Analysis of residual volatile, extractable, and oligomer levels indicates Nd—PI is indeed a clean source of high cis synthetic polyisoprene. In the practice of this invention such Nd—PI is used in manufacturing articles used in manufacturing health care products, garments, clothing, and food and beverage packaging. Some specific applications include: bandages, drug delivery patches, suture tape, pharmaceutical closures, including syringe plungers and sleeves, vial closures and stoppers, tourniquets, exercise bands, condoms and prophylactic devices, gloves and glove dip, intervenous bags and tubing, baby bottle nipples, pacifiers, and teething devices, breast hoods, and dental and orthodontic devices.

专利号:EP-0903357-B1
优先权日:1997-09-22
标 题:Synthesis of 1,4-trans-polybutadiene using a lanthanide organic acid salt catalyst

专利号:EP-0903357-A1
优先权日:1997-09-22
标题 :Synthesis of 1,4-trans-polybutadiene using a lanthanide organic acid salt catalyst

专利号:JP-H11158207-A
优先权日:1997-09-22
标题 :Synthesis of 1,4-trans-polybutadiene using lanthanide organic acid salt catalyst