Asymmetric Allylic C–H Oxidation for the Synthesis of Chromans
作者:Pu-Sheng Wang、Peng Liu、Yu-Jia Zhai、Hua-Chen Lin、Zhi-Yong Han、Liu-Zhu Gong
DOI:10.1021/jacs.5b08477
日期:2015.10.14
An enantioselective intramolecular allylic C-H oxidation to generate optically active chromans has been accomplished under the cooperative catalysis of a palladium complex of chiral phosphoramidite ligand and 2-fluorobenzoic acid. Mechanistic studies suggest that this reaction commences with a Pd-catalyzed allylic C-H activation event and then undergoes asymmetric allylic alkoxylation. The synthetic significance of the method has been embodied by concisely building up a key chiral intermediate to access (+)-diversonol.
Musabekova, Z. R.; Gurevich, P. A.; Aleksandrova, I. A., Journal of general chemistry of the USSR, 1992, vol. 62, # 3.2, p. 588
作者:Musabekova, Z. R.、Gurevich, P. A.、Aleksandrova, I. A.、Gazizov, T. Kh.