A novel and efficient approach to highly substituted indolizines via 5-endo-trig iodocyclization
摘要:
A new approach to indolizines has been developed using a 5-endo-trig iodocyclization of allylic esters followed by isomerization and dehydroiodination facilitated by triethylamine at rt This mild procedure enabled us to synthesize a number of highly substituted indolizines in good yields. (c) 2007 Elsevier Ltd. All rights reserved.
Desulfitative palladium-catalyzed direct C-3 arylation of indolizines with arylsulfonyl chlorides
作者:Wei Zhang、Fang Liu、Baoli Zhao
DOI:10.1002/aoc.3326
日期:2015.8
Pd‐catalyzed desulfitative approach to C‐3 arylation of indolizine derivatives has been developed, and the protocol uses readily available arylsulfonylchlorides as the arylation reagent under nitrogen. This transformation was performed in a mixed solvent of 1‐methyl‐2‐pyrrolidone and dimethoxyethane using simple triphenylphosphine as a ligand, which provides a new method for the C‐3 arylation of indolizines
Intramolecular CN Bond Formation under Metal-free Conditions: Synthesis of Indolizines
作者:Junliang Wu、Wei Lin Leng、Hongze Liao、Kim Le Mai Hoang、Xue-Wei Liu
DOI:10.1002/asia.201403400
日期:2015.4
Polysubstituted indolizine derivatives are constructed via intramolecularCNbondformation/CH bond cleavage under metal‐free conditions. These methods offer straightforward pathways to transform pyridyl chalcones into a variety of indolizines.
多取代的中氮茚衍生物经由分子内Ç构造 N键形成/ C 不含金属的条件下,H键裂解。这些方法提供了将吡啶基查耳酮转化为多种吲哚嗪的直接途径。
POHJAHLA E., ACTA CHEM. SCAND. <ACSA-A4>, 1975, B29, NO 10, 1079-1084