Gram scale synthesis of alpha-cyanoalkylboronic esters via direct B–B and C–N bond cleavage
作者:Sushree Ranjan Sahoo、Debayan Sarkar
DOI:10.1080/00397911.2020.1800743
日期:2020.11.1
Abstract A direct metal-free approach for the synthesis of alpha-cyanoalkylboronic esters from bis-diboron ester and azobis-nitrile compound is reported under ambient temperature and pressure via a free radical procedure. Graphical Abstract
make up an important class of BCP derivatives in drug discovery. Herein, we report the visible-light-mediated synthesis of cyanoisopropyl BCP-heteroaryls motifs from N-containing heterocycles, [1.1.1]propellane, and AIBN (2,2′-azobis(isobutyronitrile)) through three-component cascadereaction. Importantly, this protocol is compatible with pyrazinones, quinoxaline-2(1H)-one, azauracils, quinoline derivatives
OXIDATION OF ALKYLCYANOHYDRAZINES TO AZO-<i>BIS</i>NITRILES USING OXONE®–POTASSIUM BROMIDE IN AQUEOUS MEDIUM
作者:B. V. Tamhankar、Uday V. Desai、R. B. Mane、P. P. Kulkarni、P. P. Wadgaonkar
DOI:10.1081/scc-120014980
日期:2002.1
Azo-bis nitriles were prepared in good yields and high purity by oxidation of corresponding 1,2-bis-dialkylcyano hydrazines using oxone-potassium bromide in aqueous medium.
Mohite; Desai, Uday V.; Pore, Journal of Chemical Research, 2004, # 9, p. 645 - 646
作者:Mohite、Desai, Uday V.、Pore、Mane、Wadgaonkar
DOI:——
日期:——
Pinchuk,A.M. et al., Journal of Organic Chemistry USSR (English Translation), 1971, vol. 7, p. 2354 - 2357