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公开(公告)号:US20140031562A1
公开(公告)日:2014-01-30
申请号:US13060793
申请日:2009-08-28
IPC分类号: C07C29/14 , C07D207/48 , C07D307/42 , C07D333/16 , C07C41/28 , C07C213/08
CPC分类号: C07C29/14 , B01J27/13 , B01J31/0237 , B01J2231/341 , C07C29/38 , C07C37/20 , C07C41/28 , C07C41/30 , C07C67/343 , C07C213/00 , C07C213/08 , C07C2601/14 , C07C2601/16 , C07D207/48 , C07D307/42 , C07D333/16 , C07C69/76 , C07C215/30 , C07C215/68 , C07C33/30 , C07C43/23 , C07C39/19 , C07C33/483 , C07C33/28 , C07C33/14 , C07C33/025 , C07C33/24
摘要: A method of performing a chemical reaction includes reacting an allyl donor and a substrate in a reaction mixture, and forming a homoallylic alcohol in the reaction mixture. The substrate may be an aldehyde or a hemiacetal. The reaction mixture includes a ruthenium catalyst, carbon monoxide at a level of at least 1 equivalent relative to the substrate, and water at a level of at least 1 equivalent relative to the substrate, and an amine at a level of from 0 to 0.5 equivalent relative to the substrate. The reaction mixture may also include a halide, and the equivalents of the amine may be similar to those of the halide. The reacting includes maintaining the reaction mixture at a temperature of at least 40° C. The method may be catalytic in metal, environmentally benign, amenable to large-scale applications, and applicable to a wide range of substrates.
摘要翻译: 进行化学反应的方法包括在反应混合物中使烯丙基供体和底物反应,并在反应混合物中形成均一醇。 底物可以是醛或半缩醛。 反应混合物包括钌催化剂,相对于底物至少1当量的一氧化碳和相对于底物至少1当量的水,以及0至0.5当量的胺 相对于基底。 反应混合物还可以包括卤化物,胺的等价物可以与卤化物相似。 反应包括将反应混合物保持在至少40℃的温度。该方法可以是金属催化剂,环境友好的,适于大规模应用,并且可应用于宽范围的基材。
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公开(公告)号:US06867323B2
公开(公告)日:2005-03-15
申请号:US09875777
申请日:2001-06-06
申请人: Scott E. Denmark , Jun Young Choi , Daniel Wehrli , Zhicai Wu , Luc Neuville , Weitao Pan , Ramzi F. Sweis , Zhigang Wang , Shyh-Ming Yang
发明人: Scott E. Denmark , Jun Young Choi , Daniel Wehrli , Zhicai Wu , Luc Neuville , Weitao Pan , Ramzi F. Sweis , Zhigang Wang , Shyh-Ming Yang
IPC分类号: C07B37/04 , C07C1/32 , C07C29/36 , C07C29/44 , C07C41/30 , C07C45/68 , C07C45/72 , C07C67/343 , C07C205/06 , C07F7/08 , C07F7/12 , C07F7/18 , C07F7/21 , C07C67/00
CPC分类号: C07C29/36 , C07B37/04 , C07C1/325 , C07C29/44 , C07C41/30 , C07C45/68 , C07C45/72 , C07C67/343 , C07C201/12 , C07C2527/13 , C07C2531/22 , C07F7/0827 , C07F7/083 , C07F7/0836 , C07F7/0838 , C07F7/0896 , C07F7/12 , C07F7/1804 , C07F7/21 , C07C33/28 , C07C33/30 , C07C33/02 , C07C49/835 , C07C49/796 , C07C49/794 , C07C69/76 , C07C205/06 , C07C205/19 , C07C205/35 , C07C43/215 , C07C43/15 , C07C43/225 , C07C43/23 , C07C43/164
摘要: Improved methods for generating a —C—C— bond by cross-coupling of a transferable group with an acceptor group. The transferable group is a substituent of an organosilicon nucleophile and the acceptor group is provided as an organic electrophile. The reaction is catalyzed by a Group 10 transition metal complex (e.g., Ni, Pt or Pd), particularly by a palladium complex. Certain methods of this invention use improved organosilicon nucleophiles which are readily prepared, can give high product yields and exhibit high stereoselectivity. Methods of this invention employ activating ions such as halides, hydroxide, hydride and silyloxides. In specific embodiments, organosilicon nucleophilic reagents of this invention include siloxanes, particularly cyclic siloxanes. The combination of the cross-coupling reactions of this invention with ring-closing metathesis, hydrosilylation and intramolecular hydrosilylation reactions provide useful synthetic strategies that have wide application.
摘要翻译: 通过可转移基团与受体基团的交叉偶联产生-C-C键的改进方法。 可转移基团是有机硅亲核试剂的取代基,并且受体基团作为有机亲电试剂提供。 该反应由第10族过渡金属络合物(例如,Ni,Pt或Pd)催化,特别是由钯络合物催化。 本发明的某些方法使用易于制备的改进的有机硅亲核试剂,可以提供高产物产率并显示高立体选择性。 本发明的方法使用活化离子如卤化物,氢氧化物,氢化物和甲硅烷氧基。 在具体实施方案中,本发明的有机硅亲核试剂包括硅氧烷,特别是环状硅氧烷。 本发明的交叉偶联反应与闭环复分解,氢化硅烷化和分子内氢化硅烷化反应的组合提供了广泛应用的有用的合成策略。
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