Neighboring<i>ortho</i>-Hydroxy Group Directed Catalytic Asymmetric Triple Domino Reactions of Acetaldehyde with (<i>E</i>)-2-(2-Nitrovinyl)phenols
作者:Dhevalapally B. Ramachary、P. Srinivasa Reddy、M. Shiva Prasad
DOI:10.1002/ejoc.201402182
日期:2014.5
neighboring ortho-hydroxy group participation in the pretransition state of enamine- and iminium-based tripledominoreactions for high reactions rates and asymmetric induction. Enantiomerically pure, drug-like chromanes and tetrahydro-6H-benzo[c]chromenes having three to four contiguous stereocenters are synthesized through tripledomino Michael/aldol/oxa-Michael reactions catalyzed by (R)-2-diphenyl[(trim