Highly chemo- and regioselective allylic substitution with tautomerizable heteroarenes
作者:Dinesh Kumar、Sandeep R. Vemula、Gregory R. Cook
DOI:10.1039/c5gc01028d
日期:——
Tautomerizable heteroarenes, bearing multiple interconvertible nucleophilic centers exhibit high chemo- and regio-selective allylation irrespective of allylating agents used under Pd-catalysis. The achieved selectivity may be attributed to the dominant lactam...
Insights into Substrate Self-Assisted Activation of Allylic Alcohols Guiding to Mild Allylic Substitution of Tautomerizable Heteroarenes
作者:Qiuju Zhou、Lingyun Zheng、Bing Ma、Lijun Huang、Aoqi Liu、Xinhua Cao、Jing Yu、Xiantao Ma
DOI:10.1021/acs.joc.0c00094
日期:2020.4.3
A substrate self-assisted activation of allylic alcohols by tautomerizable heteroarenes via hydrogen bonding was disclosed by various NMR techniques, including variable-temperature(1)H NMR, Job plot, and H-1 NMR titration. Guided by these finding, a much milder allylic substitution of tautomerizable heteroarenes with allylic alcohols was developed, affording the target products in high yields.