Bis-exo-2-norbornylboron Triflate for Stereospecific Enolization of 3,3,3-Trifluoropropionates
摘要:
The first boron-mediated enolization-aldolization of 3.3,3-Influoropropionates has been reported The preparation and application of bis-exobicyclo[221]heptan-2-ylboron Inflate as a superior reagent for diastereospecific enolization has also been described.
Manganese-Catalyzed Aerobic Oxytrifluoromethylation of Styrene Derivatives Using CF<sub>3</sub>SO<sub>2</sub>Na as the Trifluoromethyl Source
作者:Yi Yang、Yingle Liu、Yan Jiang、Yu Zhang、David A. Vicic
DOI:10.1021/acs.joc.5b00781
日期:2015.7.2
A mild and practical protocol for manganese-catalyzed aerobic oxytrifluoromethylation of olefinic bonds of styrene derivatives using CF3SO2Na (Langlois' reagent) as the CF3 source is described. A distinguishing feature of this method is the generation of trifluoromethyl radicals from CF3SO2Na using the simple manganese salt/O-2 system. The reaction proceeds under ambient conditions, free of added peroxide initiators, and provides moderate to good selectivities for alcohol versus ketone product.
Bis-<i>exo</i>-2-norbornylboron Triflate for Stereospecific Enolization of 3,3,3-Trifluoropropionates
作者:P. Veeraraghavan Ramachandran、Gowrisankar Parthasarathy、Pravin D. Gagare
DOI:10.1021/ol1016178
日期:2010.10.15
The first boron-mediated enolization-aldolization of 3.3,3-Influoropropionates has been reported The preparation and application of bis-exobicyclo[221]heptan-2-ylboron Inflate as a superior reagent for diastereospecific enolization has also been described.