Mitsunobu Reaction Using Basic Amines as Pronucleophiles
作者:Hai Huang、Jun Yong Kang
DOI:10.1021/acs.joc.7b00622
日期:2017.7.7
reaction to include amine nucleophiles to form C–N bonds through the utilization of N-heterocyclic phosphine-butane (NHP-butane) has been developed. Both aliphatic alcohols and benzyl alcohols are suitable substrates for C–N bond construction. Various acidic nucleophiles such as benzoic acids, phenols, thiophenol, and secondary sulfonamide also provide the desired products of esters, ethers, thioether
Highly efficient Amination in Neat Water of Benzyl Chlorides with Dialkylformamides Catalysed by <i>N</i>-Heterocyclic Carbene-Palladium(II)-1-Methylimidazole Complex
作者:Wen-Xin Chen、Cai-Yun Zhang、Jian-Mei Lu
DOI:10.3184/174751913x13787959859344
日期:2013.10
Dialkylformamides are excellent N-sources in the amination of benzylchlorides when catalysed by a NHC-Pd(II)-Im complex. In the presence of NaOH and the catalyst, variously substituted benzylchlorides and five different dialkylformamides reacted smoothly to afford the corresponding N,N-dialkyl-benzylamines in good to almost quantitative yields in eco-friendly solvent water at 50 °C within 3 h.
Mechanochemical Nucleophilic Substitution of Alcohols via Isouronium Intermediates**
作者:Tatsiana Dalidovich、Jagadeesh Varma Nallaparaju、Tatsiana Shalima、Riina Aav、Dzmitry G. Kananovich
DOI:10.1002/cssc.202102286
日期:2022.2.8
Greener amine synthesis: Nucleophilicsubstitution of alcohols via reactive isouronium salts under mechanochemical one-jar reaction conditions is presented for the first time. The method opens access towards biologically active amines, including active pharmaceutical ingredients.
Palladium-Catalyzed Nucleophilic Benzylic Substitutions of Benzylic Esters
作者:Ryoichi Kuwano、Yutaka Kondo、Yosuke Matsuyama
DOI:10.1021/ja037735z
日期:2003.10.1
A palladium complex generated in situ from [Pd(eta3-C3H5)(cod)]BF4 and DPPF is a good catalyst for benzylic alkylation of benzyl methyl carbonate with the carbanion of dimethyl malonates. The catalytic reaction is applicable to a wide range of the benzylations of benzylic esters with malonates. The catalytic activity was heavily affected by the bite angle of the bidentate phosphine ligand on palladium
A corrosion inhibiting compound with a general structure A-B or A-X-B for inhibition of corrosion of steel in acidic solution. A comprises a heterocyclic ring system having a plurality of cyclic Carbon atoms and at least one cyclic Nitrogen atom, wherein the at least one cyclic Nitrogen atom is neutral under neutral conditions and protonatable under acidic conditions. B comprises at least two unsaturated Carbon atoms. B may comprise a ring system or a polymerisable group.