Low‐Valent Cobalt‐Catalyzed Deprotection of Allyloxyarenes
摘要:
AbstractHerein, we report a low‐valent cobalt‐catalyzed deprotection of allyloxyarenes. The method displays a broad substrate scope and good functional group tolerance, granting its utilization on more complex substrates, includingO‐allylated derivatives of natural products and drugs. Based on comprehensive experiments, a plausible mechanistic pathway for the low‐valent cobalt‐catalyzedO‐deallylation of allyloxyarenes is proposed.
New Method of Fluorination Using Potassium Fluoride in Ionic Liquid: Significantly Enhanced Reactivity of Fluoride and Improved Selectivity
作者:Dong Wook Kim、Choong Eui Song、Dae Yoon Chi
DOI:10.1021/ja026242b
日期:2002.9.1
have found the new nucleophilic fluorination reaction of some halo- and mesylalkanes to the corresponding fluoroalkanes with KF in the presence of [bmim][BF4] under various reaction conditions. 2-(3-Methanesulfonyloxypropoxy)naphthalene (1) was used as a model compound to optimize this fluorination reaction. Whereas the fluorination of the mesylate 1 with KF in an organic solvent such as CH3CN at 100
On the Reactivity of <i>o</i>-Lithioaryl Ethers: Tandem Anion Translocation and Wittig Rearrangement
作者:José Barluenga、Francisco J. Fañanás、Roberto Sanz、César Marcos、Marta Trabada
DOI:10.1021/ol0258029
日期:2002.5.1
[reaction: see text]. Allyl and benzyl 2-lithioaryl ethers, generated by bromine-lithium exchange in THF, undergo a new tandem anion translocation-[1,2]-Wittig rearrangement allowing the isolation of the corresponding benzylic alcohols.
Low‐Valent Cobalt‐Catalyzed Deprotection of Allyloxyarenes
作者:Branislav Kokić、Života Selaković、Andrea M. Nikolić、Ana Andrijević、Boban Anđelković、Vladimir Ajdačić、Igor M. Opsenica
DOI:10.1002/ejoc.202201112
日期:2022.11.18
AbstractHerein, we report a low‐valent cobalt‐catalyzed deprotection of allyloxyarenes. The method displays a broad substrate scope and good functional group tolerance, granting its utilization on more complex substrates, includingO‐allylated derivatives of natural products and drugs. Based on comprehensive experiments, a plausible mechanistic pathway for the low‐valent cobalt‐catalyzedO‐deallylation of allyloxyarenes is proposed.