220041-91-8Relevant academic research and scientific papers
Stereoselective electrochemical carboxylation: 2-phenylsuccinates from chiral cinnamic acid derivatives
Orsini, Monica,Feroci, Marts,Sotgiu, Giovanni,Inesi, Achille
, p. 1202 - 1208 (2005)
Chiral 2-phenyl succinic ester derivatives have been obtained under mild conditions, in short times and with satisfactory yields by electrochemical reduction of chiral cinnamic acid derivatives under a CO2 atmosphere. When 4R-(diphenylmethyl)-o
Diastereoselective Electrophilic Trifluoromethylthiolation of Chiral Oxazolidinones: Access to Enantiopure α-SCF3 Alcohols
Chachignon, Hélène,Kondrashov, Evgeniy V.,Cahard, Dominique
supporting information, p. 965 - 971 (2018/01/27)
Lithium imide enolates featuring Evans’ chiral oxazolidinone auxiliary were involved in diastereoselective α-trifluoromethylthiolation with electrophilic SCF3 donors. Diastereopure products were isolated and converted to enantiopure α-SCF3 alcohols without racemisation. (Figure presented.).
IMPROVED PROCESS FOR THE PREPARATION OF [[2(S)-[[4(R)-(3-HYDROXYPHENYL)-3(R),4-DIMETHYL-1-PIPERIDINYL]METHYL]-1-OXO-3-PHENYLPROPYL]AMINO]ACETIC ACID DIHYDRATE
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Paragraph 0087; 0089; 0090; 0108; 0109, (2017/09/13)
The present invention relates to an improved process for the preparation of [[2(S)-[[4(R)-(3-hydroxyphenyl)-3(R),4-dimethyl-1-piperidinyl]methyl]-1-oxo-3-phenylpropyl]amino]acetic acid dihydrate, represented by the following structural formula (I).
Synthesis of α-CF3-substituted carbonyl compounds with relative and absolute stereocontrol using electrophilic CF3-transfer reagents
Matousek, Vaclav,Togni, Antonio,Bizet, Vincent,Cahard, Dominique
supporting information; experimental part, p. 5762 - 5765 (2012/01/06)
Evans-type chiral lithium imide enolates undergo diastereoselective α-trifluoromethylation with a hypervalent iodine-CF3 reagent with up to 91% combined isolated yield and 97:3 dr. The resulting isolated diastereopure products can be further transformed into valuable products without racemization.
Electrogenerated base-induced N-acylation of chiral oxazolidin-2-ones. 2
Feroci, Marta,Inesi, Achille,Palombi, Laura,Sotgiu, Giovanni
, p. 1719 - 1721 (2007/10/03)
An improved and efficient electrochemical N-acylation of chiral oxazolidin-2-ones has been achieved. The generation of the nitrogen anion is obtained under mild conditions and without addition of base or probase, by direct electrolysis of a solution of Me
4-ferrocenyl-1,3-oxazoline derivatives as ligands for catalytic asymmetric allylation reactions
Moreno, Rosa Ma,Bueno, Agustí,Moyano, Albert
, p. 62 - 70 (2007/10/03)
Bis(oxazolines) and 2-(2-phosphinoaryl)oxazolines derived from highly enantiopure 2-amino-2-ferrocenylethanol have been tested as ligands in the asymmetric Pd(0)-catalysed allylic alkylation reaction. Essentially complete enantioselectivity (99.8:0.2 er) has been achieved in the nucleophilic substitution of 1,3-diphenyl-2-propenyl acetate by dimethyl malonate anion. The absolute configuration of the ligands has been unambiguously established by chiroptical methods.
A convenient and practical method for N-acylation of 2 oxazolidinone chiral auxiliaries with acids
Prashad, Mahavir,Kim, Hong-Yong,Har, Denis,Repic, Oljan,Blacklock, Thomas J.
, p. 9369 - 9372 (2007/10/03)
A one-pot, convenient and practical method for N-acylation of 2- oxazolidinone chiral auxiliaries directly with acids in the presence of pivaloyl chloride and triethylamine is described.
