TY - JOUR AU - Liu, P; Xu, X; Dong, X; Keitz, B K; Herbert, M B; Grubbs, R H; Houk, K N JO - J. Am. Chem. Soc. VL - 134 PY - 2012 DO - 10.1021/ja2108728 L3 - PubMed-ID: 22229694 SP - 1464 ER -