Enantioselective Synthesis of Cyclic Sulfamidates via Pd-Catalyzed Hydrogenation
摘要:
Using Pd(CF3CO2)(2)/(SS)-f-binaphane as the catalyst, an efficient enantioselective synthesis of cyclic sulfamidates was developed via asymmetric hydrogenation of the corresponding cyclic imines in 2,2,2-trifluoroethanol at room temperature with high enantioselectivities (up to 99% ee).
Enantioselective Synthesis of Cyclic Sulfamidates via Pd-Catalyzed Hydrogenation
摘要:
Using Pd(CF3CO2)(2)/(SS)-f-binaphane as the catalyst, an efficient enantioselective synthesis of cyclic sulfamidates was developed via asymmetric hydrogenation of the corresponding cyclic imines in 2,2,2-trifluoroethanol at room temperature with high enantioselectivities (up to 99% ee).
AMPHOLYTIC COPOLYMER, PRODUCTION THEREOF, AND USE OF THE SAME
申请人:Nguyen Kim Son
公开号:US20110015280A1
公开(公告)日:2011-01-20
The present invention relates to an ampholytic copolymer, to a process for its preparation, to cosmetic or pharmaceutical compositions which comprise at least one such ampholytic copolymer, and to further uses of these copolymers.
ACTIVE SUBSTANCE COMPOSITION COMPRISING AT LEAST ONE NITROGEN ATOM-CONTAINING, HYPERBRANCHED POLYMER
申请人:BASF SE
公开号:US20130123108A1
公开(公告)日:2013-05-16
Compositions comprising: (a) at least one hyperbranched polymer comprising nitrogen atoms; and (b) at least one substance exhibiting a solubility in water at 25° C. and 1013 mbar of less than 10 g/l are disclosed along with methods of preparing such compositions.