Indium(<scp>i</scp>)-catalyzed alkyl–allyl coupling between ethers and an allylborane
作者:Hai Thanh Dao、Uwe Schneider、Shū Kobayashi
DOI:10.1039/c0cc03673k
日期:——
An efficient method for alkylâallyl cross-coupling between ethers and a 9-BBN-derived allylborane catalyzed by indium(I) triflate has been developed. The allylborane proved to be essential to obtain the desired products in high yields. The reaction displayed good substrate scope including high functional group tolerance.
Rhenium-Catalyzed Coupling of Propargyl Alcohols and Allyl Silanes
作者:Michael R. Luzung、F. Dean Toste
DOI:10.1021/ja039124c
日期:2003.12.1
the high oxidation state rhenium complex allows for simple reisolation and reuse of the catalyst. A broad range of functional groups is tolerated including aryl halides, olefins, esters, and acid-labile functional groups such as acetals. Furthermore, displacement of the alcohol occurs preferentially even in the presence of other electrophiles such as primary alkyl halides and conjugated esters. The use
Multimetallic Ir–Sn3-catalyzed substitution reaction of π-activated alcohols with carbon and heteroatom nucleophiles
作者:Arnab Kumar Maity、Paresh Nath Chatterjee、Sujit Roy
DOI:10.1016/j.tet.2012.10.086
日期:2013.1
An atom economic and catalytic substitutionreaction of π-activated alcohols by a multimetallic Ir–Sn3 complex has been demonstrated. The multimetallic Ir–Sn3 complex can be easily synthesized from the reaction between [Cp∗IrCl2]2 and SnCl2. In presence of as little as 1 mol % of the catalyst three different types of π-activated alcohols, namely benzyl, allyl, and propargyl alcohols, have been successfully
A General and Efficient FeCl<sub>3</sub>-Catalyzed Nucleophilic Substitution of Propargylic Alcohols
作者:Zhuang-ping Zhan、Jing-liang Yu、Hui-juan Liu、Yuan-yuan Cui、Rui-feng Yang、Wen-zhen Yang、Jun-ping Li
DOI:10.1021/jo061234p
日期:2006.10.1
A general and efficient FeCl3-catalyzed substitution reaction of propargylicalcohols with carbon- and heteroatom-centered nucleophiles such as allyl trimethylsilane, alcohols, aromatic compounds, thiols, and amides, leading to the construction of C−C, C−O, C−S and C−N bonds, has been developed.
An economic and practical transformation from secondary alkyl-substituted propargyl acetates to a variety of nucleophilic substitution products was described. This reaction was catalyzed by inexpensive InCl3. High yields and excellent chemoselectivity were obtained. The five-, six-, and seven-membered propargyl cycloethers were also successfully constructed by this protocol.