Environmentally benign synthesis of 4-aminoquinoline-2-ones using recyclable choline hydroxide
作者:Anita Kailas Sanap、Ganapati Subray Shankarling
DOI:10.1039/c4nj01281j
日期:——
Biocompatible and recyclable choline hydroxide for rapid synthesis of 4-aminoquinoline-2-ones.
生物相容性和可回收的氢氧化胆碱用于快速合成4-氨基喹啉-2-酮。
Tin (IV) Chloride-promoted Synthesis of 4-Aminopyridines and 4-Aminoquinolines
作者:Augusto C. Veronese、Rosella Callegari、Carlo F. Morelli
DOI:10.1016/0040-4020(95)00773-2
日期:1995.11
Ortho-aminobenzonitriles 1 react with β-ketoesters and alkyl malonates, in the presence of stoichiometric amounts of tin(IV) chloride, to give 4-aminoquinolines 2 and 4-amino-2-quinolones 3 respectively. Similarly β-enaminonitriles 7 afford 4-aminopyridines 8 and 4-amino-2-pyridones 9.
VERONESE, AUGUSTO C.;CALLEGARI, ROSELLA;SALAH, SUADA AHMED ALI, TETRAHEDRON LETT., 31,(1990) N4, C. 3485-3488
作者:VERONESE, AUGUSTO C.、CALLEGARI, ROSELLA、SALAH, SUADA AHMED ALI
DOI:——
日期:——
Tin (IV) chloride-promoted reactions of β-dicarbonyl compounds with nitriles. Synthesis of aminopyridines and aminoquinolines.
作者:Augusto C. Veronese、Rosella Callegari、Suada Ahmed Ali Salah
DOI:10.1016/s0040-4039(00)97429-x
日期:1990.1
β-Ketoesters and β-diesters react with β-enaminonitriles in the presence of stoichiometric amounts of tin (IV) chloride to give 4-aminopyridines and pyridones while they react with aromatic orthoaminonitriles to give 4-aminoquinolines and quinolones.
The ReH(7)(PPh(3))(2)-catalyzed addition of carbonyl compounds to the carbon-nitrogen bond of nitriles proceeds efficiently and selectively to give the corresponding (Z)-enamines, which are important synthetic intermediates. The key step of the reaction is the chemoselective alpha-C-H activation of carbonyl compounds induced by the alpha-heteroatom effect in the presence of nitriles.