The present invention provides an asymmetric hydrogenation process for the preparation of chiral cycloalkanoindole DP receptor antagonists in high enantiomeric excess.
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Page/Page column 5-6
(2008/06/13)
Methanesulfonylation of deactivated aromatics with superelectrophilic CH3so2F·3SbF5 and (CH3so2)2O-2CF3so 3H/B(O3SCF3)3 systems
Methanesulfonylation of various deactivated arenes, including tri- and tetrafluorobenzenes, was achieved in good yield under mild conditions using superelectrophilic CH3SO2F/3SbF5 and (CH3SO2O)2O/2CF3SO 3H-B(O3SCF3)3 reagent systems. 1998 MAHK "Hayka/Interperiodica".
Olah,Orlinkov,Oxyzoglou,Prakash, G.K. Suria
p. 1573 - 1578
(2007/10/03)
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