efficiently prepared by direct C-3 arylation of indolizines using sodium arylsulfinates and arylsulfonylhydrazides. Pd-catalyzed desulfitative C-3 arylation with sodium arylsulfinates was achieved with the assistance of peroxides, and the catalytic efficiency was promoted by N-containing ligands. Arylsulfonylhydrazides were also successfully applied in Pd-catalyzed desulfitative C-3 arylation with indolizines
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
Tuning radical reactivity using iodine in oxidative C(sp<sup>3</sup>)–H/C(sp)–H cross-coupling: an easy way toward the synthesis of furans and indolizines
作者:Shan Tang、Kun Liu、Yue Long、Xiaotian Qi、Yu Lan、Aiwen Lei
DOI:10.1039/c5cc01825k
日期:——
Molecular iodine was found to be an effective redox catalyst for the oxidative cross-coupling of carbonyl compounds with terminal alkynes.
分子碘被发现是一种有效的氧化还原催化剂,可用于羰基化合物与末端炔烃的氧化交叉偶联反应。
Synthesis of 3-Haloindolizines by Copper(II) Halide Mediated Direct Functionalization of Indolizines
作者:Ji-Bao Xia、Shu-Li You
DOI:10.1021/ol9000872
日期:2009.3.5
3-Haloindolizines were synthesized via Cu(II) halidemediated halogenation of indolizines. This C−H direct functionalization process occurred under mild conditions giving 3-haloindolizines in moderate to excellent yields, and the products obtained were tested under the Suzuki−Miyaura reaction providing 3-arylindolizines in high yields.
Iodine-Catalyzed Radical Oxidative Annulation for the Construction of Dihydrofurans and Indolizines
作者:Shan Tang、Kun Liu、Yue Long、Xinlong Gao、Meng Gao、Aiwen Lei
DOI:10.1021/acs.orglett.5b00912
日期:2015.5.15
Through iodine catalysis, the direct oxidative coupling/annulation of beta-keto esters or 2-pyridinyl-beta-esters with alkenes was achieved. This reaction procedure provides a simple and selective way for the synthesis of dihydrofurans and indolizines in one step.