Direct Reduction of Allylic Alcohols Using Isopropanol as Reductant
作者:Masahiro Sai
DOI:10.1002/adsc.201800731
日期:2018.9.17
lithium cation‐catalyzed direct reduction of allylicalcohols to alkenes using isopropanol as a hydride donor was developed. The hydride transfer of the in situ‐generated lithium isopropoxide to an allylic cation is the key process in this transformation. The reaction generates only water and acetone as byproducts, which highlights the synthetic utility of this method.
In Situ Ring‐Closing Strategy for Direct Synthesis of N‐Heterocyclic Carbene Nickel Complexes and Their Application in Coupling of Allylic Alcohols with Aryl Boronic Acids
作者:Yu‐Bin Wang、Bin‐Yuan Liu、Qingqing Bu、Bin Dai、Ning Liu
DOI:10.1002/adsc.202000186
日期:2020.7.29
A in situ ring‐closing strategy was developed for the synthesis of N‐heterocycliccarbenenickelcomplexes. The process was carried out in air, and did not require solvent purification. The resulting nickelcomplexes were investigated as catalysts for the coupling of allylic alcohols with aryl boronic acids. A wide range of allylic substrates and aryl acids proved to be applicable to this catalytic
Nickel-catalyzed cross-electrophile coupling of aryl chlorides with allylic alcohols
作者:Hang Yu、Zhong-Xia Wang
DOI:10.1039/d1ob01874d
日期:——
Nickel-catalyzed cross-electrophile coupling of aryl chlorides with allylicalcohols proceeds readily under mild conditions in the presence of zinc powder and MgCl2 to produce allylarenes in 25–92% yields. The reaction shows high regioselectivity and E/Z-selectivity, giving linear allylation products with an E configurated double bond when 1- or 3-arylallyl alcohols were used as the substrates. Functional groups including
FeCl<sub>3</sub>·6H<sub>2</sub>O Catalyzed Disproportionation of Allylic Alcohols and Selective Allylic Reduction of Allylic Alcohols and Their Derivatives with Benzyl Alcohol
been found to be an efficient catalyst for the disproportionation of allylicalcohols, which provides a convenient method for selective transformation of allylicalcohols to alkenes and α,β-unsaturated ketones. Furthermore, this catalytic system is also effective for highly selective allylicreduction of allylicalcohols, allylic ethers, and allylic acetates with benzyl alcohol under neutral and convenient
FeCl3·6H2O-catalyzed selective reduction of allylic halides to alkenes with concomitant oxidation of benzylic alcohols to aldehydes
作者:HouCai Zhang、RuiTing Liu、XiGeng Zhou
DOI:10.1007/s11426-013-5042-2
日期:2014.2
Iron-catalyzed direct reduction of allylic halides with benzylic alcohol was achieved, providing a new, simple, and efficient method for conducting highly regioselective hydrodehalogenation. This method not only features a readily available reductant, an inexpensive catalyst, simple manipulation, and good tolerance of functional groups including nitriles, nitro, esters, and methoxyl groups, it also