Highly Enantio- and Diastereoselective Synthesis of β-Methyl-γ-monofluoromethyl-Substituted Alcohols
作者:Wenguo Yang、Xinle Wei、Yuanhang Pan、Richmond Lee、Bo Zhu、Hongjun Liu、Lin Yan、Kuo-Wei Huang、Zhiyong Jiang、Choon-Hong Tan
DOI:10.1002/chem.201100929
日期:2011.7.11
Enanatiopure β‐methyl‐γ‐monofluoromethyl alcohols were prepared from the allylic alkylation between fluorobis(phenylsulfonyl)methane with Morita–Baylis–Hillman carbonates. The reaction was catalyzed by using the Cinchona alkaloid derivative, (DHQD)2AQN. The origin of the stereoselectivity was verified by DFT methods. Calculated geometries and relative energies of various transition states strongly
由氟双(苯磺酰基)甲烷与森田-贝利斯-希尔曼碳酸盐之间的烯丙基烷基化反应制备了纯的β-甲基-γ-一氟甲基醇。使用金鸡纳生物碱衍生物(DHQD)2 AQN催化反应。立体选择性的起源已通过DFT方法进行了验证。计算得出的各种过渡态的几何形状和相对能量强烈支持了所观察到的立体选择性。