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[摘要]:Single point binding ruthenium Lewis acid catalysts [Ru(acetone)(S,S)-BIPHOP-F)CpliSbF(6)] ((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. |
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