30727-29-8Relevant articles and documents
Calcium trifluoroacetate as an efficient catalyst for ring-opening of epoxides by amines under solvent-free conditions
Outouch, Rachid,Rauchdi, Mariem,Boualy, Brahim,El Firdoussi, Larbi,Roucoux, Alain,Ali, Mustapha Ait
, p. 67 - 72 (2014/04/17)
Ca(CF3CO2)2 efficiently catalyzed the selective ring-opening of epoxides by amines leading to the synthesis of β-aminoalcohols. The reaction works well with various aromatic and aliphatic amines under solvent-free conditions. Corresponding β-aminoalcohols were obtained in excellent yields with high regioselectivity. The catalyst was easily prepared by reaction of CaH 2 in trifluoroacetic acid.
Stereoselective Method for the Production of Clopidogrel
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, (2008/06/13)
The present invention relates to processes for preparing a compound of the general formula (Ia) wherein X is a halogen atom, or a pharmaceutically acceptable salt thereof, wherein a compound of the formula (II) wherein X is as defined above and Y and Z independently represent a leaving group each, is reacted with an optically active amino alcohol to form a first mixture of diastereomers.
Structural characterization of two novel potential anticholinesterasic agents
Oliveira, Paulo R.,Wiectzycosky, Franciele,Basso, Ernani A.,Gon?alves, Regina A.C.,Pontes, Rodrigo M.
, p. 191 - 198 (2007/10/03)
Two novel compounds with possible anticholinesterase activity have been synthesized containing a carbamate and a dimethylamine group in 1,2-positions of a cyclohexane ring (cis and trans isomers). Conformer populations were established by a combination of NMR 1H coupling constant analysis and DFT (B3LYP/6-311 + G(d,p)) calculations. 13C chemical shifts were calculated in order to confirm signal attributions. The cis isomer adopts a conformation in which the carbamate group lies at the axial position (>99%), whereas the trans isomer adopts a diequatorial arrangement (98%). These preferences have been explained in terms of syn-1,3-diaxial interactions of the individual groups.