Photoredox/Nickel Dual Catalysis-Enabled Modular Synthesis of Arylallyl Alcohols with Acetylene as the Two-Carbon Synthon
作者:Kangkui Li、Xianyang Long、Shifa Zhu
DOI:10.1021/acscatal.2c06178
日期:2023.2.17
alcohols were synthesized in an acetylene atmosphere (1 atm). This method features broad substrate scopes, good functional group tolerance, and high Z-selectivity. In addition to the intermolecular difunctionalization of acetylene, the reaction is also amenable to intramolecular ring formation, giving highly valuable indenols and indanones. The mechanistic investigation indicates that the alkenylnickel
Preparative synthesis of optically pure ortho-substituted benzhydrols by asymmetric reductions of the corresponding benzophenones
作者:Eric Brown、Antoine Lézé、Joël Touet
DOI:10.1016/s0957-4166(00)82179-5
日期:1992.7
Lithium aluminium hydride previously treated with 2.5 equivalents of (S)-(+) or (R)-(-)-2 -(2-iso-indolinyl)butan-1-ol 3 (readily available reagents) reduced the five ortho-substituted benzophenones 4-6, 8 and 10 into the corresponding optically active benzhydrols with nearly 100% enantiomeric excesses. Other examples of asymmetric reductions of prochiral benzophenones are given.
Synthesis of Some Trichloromethyl-2-benzylphenylcarbinols<sup>1,2</sup>
作者:FRANK A. VINGIELLO、GEORGE J. BUESE、PETER E. NEWALLIS