3297-66-3Relevant articles and documents
Visible-light-mediated three-component Minisci reaction for heteroarylethyl alcohols synthesis
Dong, Jianyang,Liu, Jianhua,Liu, Yuxiu,Song, Hongjian,Wang, Qingmin,Yue, Fuyang
supporting information, p. 7963 - 7968 (2021/11/01)
Methods for heteroarylethyl alcohol synthesis are critical to the chemical and pharmaceutical industries. Herein, we report a mild, modular, practical Minisci reaction for catalytic synthesis of heteroarylethyl alcohols via sequential addition of H2O and N-heteroarenes across olefinic double bonds. This scalable protocol was used for direct hydroxy-heteroarylation of olefins with a wide range of N-heteroarenes and can be expected to permit rapid conversion of abundant feedstock materials into medically relevant molecules.
Synthesis of chiral P,N-ligands derived from quinoline and their application in asymmetric allylic alkylations
Shen, Yan-Hong,Lv, Hui-Chao,Zhao, Liang
scheme or table, p. 349 - 351 (2011/10/05)
Chiral P,N-ligands derived from quinoline and with a trans and cis cyclohexane backbone were easily synthesised in four steps from quinoline N-oxide. The enantiopure trans isomer was obtained by the way of chiral resolution of the mixture of trans- and cis-2-(quinolin-2-yl)cyclohexanol with dibenzoyltartaric acid and then subjected to a Mitsunobu reaction and deprotection to give the corresponding cis isomer. The optical pure trans and cis isomer reacted with chlorodiphenylphosphine or PAr2NEt 2 to obtain trans and cis P,N-ligands, which were used in asymmetric allylic alkylations with up to 78% ee and 84% ee respectively.
Electron-transfer Processes: Metal Salt Catalysed Oxidation of Olefins by Peroxydisulphate
Arnoldi, Claudio,Citterio, Attilio,Minisci, Francesco
, p. 531 - 542 (2007/10/02)
The reaction of simple olefins (oct-1-ene, oct-2-ene, cyclohexene, cycloheptene) with peroxydisulphate has been investigated under several conditions: (i) in aqueous medium and catalysis by AgI, FeII, and CuII; (ii) in acetic madium and catalysis by CuII, FeIII; (iii) in the presence of traps of nucleophilic alkyl radicals (protonated heteroaromatic bases and 1,4-benzoquinone either in water or in acetic acid).The catalyst and the radical trap govern the selectivity and allow a variety of new synthetic achievements.Evidence for a unified initial mechanism of electron transfer with formation of a radical cation from the olefin is reported to explain all the results.In water the radical cation gives a β-hydroxyalkyl radical, which, depending on the nature of the catalyst and the trap, can give the corresponding saturated alcohol by hydrogen abstraction, the products of CuII oxidation, or β-hydroxyalkylation of the heteroaromatic compound or 1,4-benzoquinone.In acetic acid the radical cation gives a β-acetoxyalkyl radical, which is oxidized to the corresponding allylic acetate by copper(II) acetate or trapped by the heteroaromatic base.