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Publication 153
- “Chiral Ruthenium Lewis Acid Catalyzed Intramolecular Diels-Alder Reactions”
S. Thamapipol, G. Bernardinelli, C. Besnard, E.P. Kündig,
Org. Lett. 2010, 12, 5604-5607.
Single point binding ruthenium Lewis acid catalysts [Ru(acetone)(S,S)-BIPHOP-F)Cp][SbF6] ((S,S)-1b) and [Ru(acetone)(S,S)-BIPHOP-F)(indenyl)][SbF6] ((S,S)-1c) efficiently catalyze intramolecular Diels-Alder (IMDA) reactions under mild conditions to afford the endo cycloaddition products as the major product in excellent yields with high diastereo- and enantioselectivities.
DOI : 10.1021/ol1019103
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