435269-66-2Relevant academic research and scientific papers
Enantioselective Conjugate Addition of Aryl Halides and Triflates to Electron-Deficient Olefins via Nickel- And Rhodium-Catalyzed Sequential Relay Reactions
Fan, Chenrui,Wu, Qixu,Zhu, Chengfeng,Wu, Xiang,Li, Yougui,Luo, Yunfei,He, Jian-Bo
supporting information, p. 8888 - 8892 (2019/10/14)
Asymmetric conjugate addition of aryl halides or aryl triflates to electron-deficient olefins was realized by sequential Miyaura borylation and Hayashi-Miyaura conjugate addition in one pot. A nickel-catalyzed borylation of aryl halides or triflates and a rhodium-chiral diene complex catalyzed enantioselective conjugate addition was executed as a pair of relay reactions as a more efficient and greener protocol.
Chiral porous organic frameworks for asymmetric heterogeneous catalysis and gas chromatographic separation
Dong, Jinqiao,Liu, Yan,Cui, Yong
supporting information, p. 14949 - 14952 (2015/01/08)
Three chiral robust diene-based porous organic frameworks (POFs) are prepared. POF-1 is shown to be an efficient heterogeneous catalyst after metallation for asymmetric conjugation addition with up to 93% ee, and it can also function as a new chiral stationary phase for gas chromatographic separation of racemates. This journal is
An N-linked bidentate phosphoramidite ligand (N-Me-BIPAM) for rhodium-catalyzed asymmetric 1,4-Addition of arylboronic acids to α,β-unsaturated ketones
Yamamoto, Yasunori,Kurihara, Kazunori,Takahashi, Yoshinori,Miyaura, Norio
, p. 14 - 26 (2013/04/10)
A new bidentate phosphoramidite (N-Me-BIPAM) based on Shibasaki's N-linked BINOL was synthesized. This ligand appears to be highly effective for rhodium-catalyzed asymmetric conjugated addition of arylboronic acids to α,β-unsaturated enones. The reaction
(S)-Phenylalanine-derived chiral phosphorus-olefin ligands in rhodium-catalyzed asymmetric 1,4-addition reactions
Narui, Rintaro,Hayashi, Sayuri,Otomo, Haruka,Shintani, Ryo,Hayashi, Tamio
experimental part, p. 284 - 293 (2012/06/16)
Chiral phosphorus-olefins (S)-1, (S)-4, and (S)-5 have been designed and synthesized. These ligands were all synthesized from (S)-phenylalanine derivatives and act as phosphorus-olefin bidentate ligands to rhodium. The coordination face of the olefin can
Polymer-incarcerated chiral Rh/Ag nanoparticles for asymmetric 1,4-addition reactions of arylboronic acids to enones: Remarkable effects of bimetallic structure on activity and metal leaching
Yasukawa, Tomohiro,Miyamura, Hiroyuki,Kobayashi, Shu
, p. 16963 - 16966 (2013/01/15)
Robust and highly active bimetallic Rh nanoparticle (NP) catalysts, PI/CB Rh/Ag, have been developed and applied to the asymmetric 1,4-addition of arylboronic acids to enones without leaching of the metals. We found that the structures of the bimetallic Rh/Ag catalysts and chiral ligands strongly affect their catalytic activity and the amount of metal leaching. PI/CB Rh/Ag could be recycled several times by simple operations while keeping high yields and excellent enantioselectivities. To show the versatility of the PI/CB Rh/Ag catalyst, a one-pot, oxidation-asymmetric 1,4-addition reaction of an allyl alcohol and an arylboronic acid was demonstrated by combining the PI/CB Rh/Ag catalyst with PI/CB Au as an aerobic oxidation catalyst.
Pd-catalyzed asymmetric hydrogenation of C=C bond of α,β- unsaturated ketones
Wang, Duo-Sheng,Wang, Da-Wei,Zhou, Yong-Gui
supporting information; experimental part, p. 947 - 950 (2011/06/17)
Homogenous palladium-catalyzed asymmetric hydrogenation of C=C double bond of ,-unsaturated ketones has been -developed by using palladium(II) trifluoroacetate/(S)-7,7-bis-[di(4-methoxyphenyl]phosphino)-1,1-spirobiindane complex [Pd(OCOCF3)2-(S)-An-SDP] as the catalyst under ambient hydrogen pressure and room temperature with up to 89% ee. Georg Thieme Verlag Stuttgart · New York.
Highly enantioselective rhodium-catalyzed asymmetric 1,4-addition reactions of arylboronic acids to acyclic α,β-unsaturated compounds: The formal synthesis of (-)-indatraline
Wei, Wei-Ting,Yeh, Jiann-Yih,Kuo, Ting-Shen,Wu, Hsyueh-Liang
supporting information; experimental part, p. 11405 - 11409 (2011/11/12)
It's do or diene: Stable chiral bicyclo[2.2.1]diene ligands were synthesized from (-)-5-oxobornyl acetate and utilized in the asymmetric 1,4-addition reaction of arylboronic acids with acyclic α,β- unsaturated compounds. Low catalytic loading of the compl
Enantioselective conjugate radical addition to α'-phenylsulfonyl enones
Lee, Jin Young,Kim, Sundae,Kim, Sunggak
scheme or table, p. 4947 - 4949 (2011/01/04)
Enantioselective conjugate addition reactions of alkyl radicals to α'-phenylsulfonyl enones are described. A bis-oxazoline-zinc triflate complex proved to be an effective catalyst leading to high enantioselectivities and chemical yields.
Iron- and cobalt-catalyzed asymmetric hydrosilylation of ketones and enones with bis(oxazolinylphenyl)amine ligands
Inagaki, Tomohiko,Phong, Le Thanh,Furuta, Akihiro,Ito, Jun-Ichi,Nishiyama, Hisao
supporting information; scheme or table, p. 3090 - 3096 (2010/08/05)
Chiral bis(oxazolinylphenyl)amines proved to be efficient auxiliary ligands for iron and cobalt catalysts with high activity for asymmetric hydrosilylation of ketones and asymmetric conjugate hydrosilylation of enones.
Hemilabile P-alkene ligands in chiral rhodium and copper complexes: Catalytic asymmetric 1,4 additions to enones. 2
Dorta, Romano,Drinkel, Emma,Briceno, Alexander,Dorta, Reto
experimental part, p. 2503 - 2514 (2010/08/04)
Two equivalents of the chiral dibenz[b,f]azepine-derived P-alkene ligands 2-6 per metal afforded mononuclear Rh(I) and Cu(I) complexes that were used as catalysts for asymmetric conjugate addition reactions. Rh formed square-planar neutral (8-10) and cati
