1052183-87-5Relevant academic research and scientific papers
Concentration Effect in the Asymmetric Michael Addition of Acetone to β-Nitrostyrenes Catalyzed by Primary Amine Thioureas
Günler, Z. Inci,Alfonso, Ignacio,Jimeno, Ciril,Pericàs, Miquel A.
, p. 319 - 325 (2016/12/24)
Bifunctional primary amine thiourea (PAT) organocatalysts show remarkable improvement in enantioselectivity and catalytic activity (turnover frequency) in the asymmetric Michael addition of acetone to β-nitrostyrenes upon dilution. Mechanistic investigati
Optically Active 4-Substituted 5-Nitropentan-2-ones: Valuable Chiral Building Blocks for the Stereocontrolled Construction of Spiro-Pyrazolone Scaffolds with Five Contiguous Stereogenic Centers
Sun, Jiao,Jiang, Cuiping,Zhou, Zhenghong
, p. 1165 - 1172 (2016/03/05)
The application of readily available optically active 4-substituted 5-nitropentan-2-ones as chiral building blocks in the stereocontrolled construction of spiro-pyrazolone scaffolds was investigated. In the presence of 1,8-diazabicyclo[5.4.0]undec-7-ene (
New simple primary amine-thiourea organocatalysts and their application in asymmetric conjugate addition
Yu, Lu,Li, Pengfei
supporting information, p. 3697 - 3700 (2014/06/23)
A kind of simple primary amine-thiourea organocatalysts was developed. And their application in asymmetric conjugate addition of ketone to nitroalkene was investigated. In the presence of the new primary amine-thiourea, the conjugate addition of ketone to
Asymmetric synthesis of tetrahydroquinolines through supramolecular organocatalysis
Ramachary, Dhevalapally B.,Shruthi, Kodambahalli S.
supporting information, p. 4300 - 4304 (2014/06/23)
Functionalized chiral tetrahydroquinolines were synthesized through supramolecular organocatalysis using quinidine-NH-thiourea 3c/l-phenylalanine 4i followed by reductive amination from the simple substrates. the Partner Organisations 2014.
Organocatalyzed Michael addition reaction by novel (2 R,3a S,7a S)-octa-hydroindole-2-carboxylic acid, a new fused proline
Roca-López, David,Merino, Pedro,Sayago, Francisco J.,Cativiela, Carlos,Herrera, Raquel P.
experimental part, p. 249 - 253 (2011/03/21)
We present here the results obtained in our study on organocatalytic enantioselective Michael addition reaction of acetone to different nitroolefines using (2R,3aS,7aS)-octahydroindole-2-carboxylic acid [(R,S,S)-Oic] as a new and suitable catalyst for thi
Asymmetric multifunctional organocatalytic Michael addition of nitroalkanes to α,β-unsaturated ketones
Li, Pengfei,Wang, Yongcan,Liang, Xinmiao,Ye, Jinxing
supporting information; experimental part, p. 3302 - 3304 (2009/02/04)
Cinchona alkaloid derived primary amine thioureas organocatalyzed Michael addition of nitroalkanes to enones in good yield and up to 98% ee and offered a new way to construct quaternary stereocenters from enones and nitroalkanes. The Royal Society of Chem
A novel bifunctional sulfonamide primary amine-catalyzed enantioselective conjugate addition of ketones to nitroolefins
Xue, Fei,Zhang, Shilei,Duan, Wenhu,Wang, Wei
supporting information; experimental part, p. 2194 - 2198 (2009/10/02)
The enantioselective conjugate addition of a variety of ketones to nitroolefins has been developed. The process is efficiently catalyzed by a novel bifunctional sulfonamide primary amine in good yields and with good levels of enantioselectivity.
