2021-11-16 | π-Facial Stereoselectivity in Acyl Nitroso Cycloadditions to 5,5-Unsymmetrically Substituted Cyclopentadienes: Computational Exploration of Origins of Selectivity and the Role of Substituent Conformations on Selectivity – J. Org. Chem. Fengyue Zhao, Peiyuan Yu, Yu Chen, Fang Liu, and K. N. Houk*.