17355-24-7Relevant academic research and scientific papers
A comparison of phosphaferrocene and phospharuthenocene ligands in Rh +-catalysed enamide hydrogenation reactions: Superior performance of the phospharuthenocene
Carmichael, Duncan,Goldet, Gabrielle,Klankermayer, Juergen,Ricard, Louis,Seeboth, Nicolas,Stankevic, Marek
, p. 5492 - 5502 (2007)
Enantiopure Cp*-substituted 3.4-dimethyl-5-phenylphosphametallocene- 2-methanols (M=Fe, Ru) have been prepared from the corresponding 2-carboxy-(-)-menthylphospholide anion and elaborated into 2-CH 2PPh2 phosphametallocenes (13: M =
High enantioselectivity is induced by a single monodentate phosphoramidite ligand in iridium-catalyzed asymmetric hydrogenation
Giacomina, Francesca,Meetsma, Auke,Panella, Lavinia,Lefort, Laurent,De Vries, Andre H. M.,De Vries, Johannes G.
, p. 1497 - 1500 (2007)
(Chemical Equation Presented) The Full Monty? Stripping a catalyst down to its bare essentials gives a neutral iridium complex containing only one monodentate phosphoramidite ligand that is an efficient catalyst for the enantioselective hydrogenation of α-dehydroamino acids (see picture).
Novel chiral phosphine-phosphoramidite ligands derived from 1-naphthylamine for highly efficient Rh-catalyzed asymmetric hydrogenation
Yu, Sai-Bo,Huang, Jia-Di,Wang, Dao-Yong,Hu, Xiang-Ping,Deng, Jun,Duan, Zheng-Chao,Zheng, Zhuo
, p. 1862 - 1866 (2008)
A new chiral phosphine-phosphoramidite ligand (S)-HY-Phos 1 has been prepared from 1-naphthylamine via a two-step transformation, and successfully applied in the Rh-catalyzed asymmetric hydrogenation of various functionalized olefins, including α-(acetamido)cinnamates, enamides and α-enol ester phosphonates, in which up to 98% ee, 99% ee and 99% ee were achieved, respectively.
Studies on the rhodium- and ruthenium-catalyzed asymmetric hydrogenation of α-dehydroamino acids using a family of chiral dipyridylphosphine ligand (P-Phos)
Wu, Jing,Pai, Cheng Chao,Kwok, Wai Him,Guo, Rong Wei,Au-Yeung, Terry T.L.,Yeung, Chi Hung,Chan, Albert S.C.
, p. 987 - 992 (2003)
The applications of the chiral dipyridylphosphine ligand P-Phos and its derivatives Tol-P-Phos and Xyl-P-Phos in Ru- and Rh-catalyzed hydrogenations of the methyl esters of a variety of (Z)-2-acetamido-3-arylacrylic acids have been studied systematically.
Modified BINAPO ligands for Rh-catalysed enantioselective hydrogenation of acetamidoacrylic acids and esters
Guo, Rongwei,Au-Yeung, Terry T.-L.,Wu, Jing,Choi, Michael C. K.,Chan, Albert S. C.
, p. 2519 - 2522 (2002)
(S)- and (R)-2,2′-Bis[bis(3,5-dimethylphenyl)phosphinoyl]-5,5′,6, 6′,7,7′,8,8′-octahydro-1,1′-binaphthyl (Xyl-H8-BINAPO) were synthesised by reacting chlorobis(3,5-dimethylphenyl)phosphine with (S)- and (R)-2,2′-dihydroxyl-5,5′,6,6′,7,7′,8,8′-
Novel phosphine-phosphites and their use in asymmetric hydrogenation
Farkas, Gergely,Balogh, Szabolcs,Szoellsy, Aron,Uerge, Laszlo,Darvas, Ferenc,Bakos, Jozsef
, p. 2104 - 2109 (2011)
Excellent enantioselectivities and activities have been obtained in the rhodium catalyzed asymmetric hydrogenation of dimethyl itaconate and several dehydroamino acid esters using a new class of BINOL based phosphine-phosphite ligand. The hydrogenation pr
Carbohydrate-derived monophosphite ligands for Rh-catalyzed enantioselective hydrogenation of α- and β-dehydroamino acid esters
Huang, Hanmin,Liu, Xiongcai,Chen, Song,Chen, Huilin,Zheng, Zhuo
, p. 2011 - 2019 (2004)
A series of monophosphite ligands derived from D-fructose and D-glucose have been synthesized and employed in Rh-catalyzed asymmetric hydrogenation of α- and β-dehydroamino acid esters. A variety of chiral α- and β-amino acid esters have been obtained in
Unsymmetrical ferrocenylethylamine-derived monophosphoramidites: Highly efficient chiral ligands for Rh-catalyzed enantioselective hydrogenation of enamides and α-dehydroamino acid derivatives
Zeng, Qing-Heng,Hu, Xiang-Ping,Duan, Zheng-Chao,Liang, Xin-Miao,Zheng, Zhuo
, p. 393 - 396 (2006)
A new family of unsymmetrical ferrocenylethylamine-derived monophosphoramidites were synthesized and successfully applied in the Rh-catalyzed enantioselective hydrogenation of a range of enamides and α-dehydroamino acid esters, and ee values of up to 99.5% were obtained for both types of substrate. These results suggest that unsymmetrical amine-derived monophosphoramidites can also exhibit excellent enantioselectivity for a broad range of substrates, comparable to or higher than those of the most efficient symmetrical amine-derived monophosphoramidites reported thus far.
Highly enantioselective hydrogenation of α-dehydroamino acids by rhodium complex with H8-MonoPhos
Zeng, Qingle,Liu, Hui,Cui, Xin,Mi, Aiqiao,Jiang, Yaozhong,Li, Xingshu,Choi, Michael C.K.,Chan, Albert S.C.
, p. 115 - 117 (2002)
H8-MonoPhos, a new stable and easily prepared monodentate phosphoramidite ligand, has been synthesized from H8-BINOL. The ligand showed extremely highly enantioselectivity of higher than 99.9% e.e. in the asymmetric Rh-catalyzed hydr
Design and synthesis of a novel three-hindered quadrant bisphosphine ligand and its application in asymmetric hydrogenation
Huang, Kexuan,Zhang, Xiaowei,Emge, Thomas J.,Hou, Guohua,Cao, Bonan,Zhang, Xumu
, p. 8555 - 8557 (2010)
A novel three hindered quadrant bisphosphine ligand has been synthesized. The ligand shows excellent enantioselectivities and reactivities for rhodium-catalyzed hydrogenations of various functionalized olefins.
