Cu(I)-catalyzed synthesis of N- tosyl-4-iminoquinolizines
摘要:
Pyridines were found to be a convenient nucleophile in the copper(I)-catalyzed synthesis of N-tosyl-4-iminoquinolizines from 2-pyridyl compounds. Intramolecular cyclization of an in situ generated ketenimine and a tethered pyridine, followed by a base-promoted oxidation, affords the desired products in moderate to good yields under mild reaction conditions. (C) 2015 Elsevier Ltd. All rights reserved.
Cu(I)-catalyzed synthesis of N- tosyl-4-iminoquinolizines
摘要:
Pyridines were found to be a convenient nucleophile in the copper(I)-catalyzed synthesis of N-tosyl-4-iminoquinolizines from 2-pyridyl compounds. Intramolecular cyclization of an in situ generated ketenimine and a tethered pyridine, followed by a base-promoted oxidation, affords the desired products in moderate to good yields under mild reaction conditions. (C) 2015 Elsevier Ltd. All rights reserved.
Facile approach to diverse 3-acylated indolizines via a sequential Sonogashira coupling/iodocyclization process
作者:Youngeun Jung、Ikyon Kim
DOI:10.1016/j.tet.2012.07.068
日期:2012.9
Successful implementation of a sequential Pd-catalyzed Sonogashira cross-coupling/iodine-promoted 5-exo-dig cyclization procedure with pyridines bearing a terminalalkyne moiety provided direct and straightforward access to a diverse array of 3-acylated indolizines under mild conditions.
Cu(I)-catalyzed synthesis of N- tosyl-4-iminoquinolizines
作者:Joanna L. Chen、Sheila Namirembe、Luke T. Lauchert、Gregory H. Tsougranis、André K. Isaacs
DOI:10.1016/j.tetlet.2015.05.030
日期:2015.7
Pyridines were found to be a convenient nucleophile in the copper(I)-catalyzed synthesis of N-tosyl-4-iminoquinolizines from 2-pyridyl compounds. Intramolecular cyclization of an in situ generated ketenimine and a tethered pyridine, followed by a base-promoted oxidation, affords the desired products in moderate to good yields under mild reaction conditions. (C) 2015 Elsevier Ltd. All rights reserved.