Furo[3,2-b]pyridine: a convenient unit for the synthesis of polyheterocycles
作者:Anthony Chartoire、Corinne Comoy、Yves Fort
DOI:10.1016/j.tet.2008.09.008
日期:2008.11
An efficient and rapid synthesis of furo[3,2-b]pyridine 1 is described using a one-pot Sonogashira coupling/heteroannulation sequence. Regioselectivelithiation of this synthon was performed leading to various 2-substituted furo[3,2-b]pyridines. Some of them were used as substrates for short functional synthesis of polyheterocycles.
使用一锅Sonogashira偶联/杂环化序列描述了快速合成呋喃并[3,2- b ]吡啶1。进行该合成子的区域选择性锂化,产生各种2-取代的呋喃并[3,2- b ]吡啶。其中一些被用作多杂环短功能合成的底物。
CuI catalyzed domino coupling–cyclization of 2-iodo-phenols and 1-alkynes to the synthesis of 2-substituted benzo[b]furans/furo-pyridines
作者:Ze-Pin Chen、Yi Zhou、Meng-Zhu Shui、Feng Liu
DOI:10.1016/j.tetlet.2018.11.076
日期:2019.1
CuI/proline-catalyzed coupling reaction of 2-iodo-phenols with terminal alkynes and the following cyclization process is carried out successively in DMSO at 80 degrees C. Under this tandem process, 2-substituted benzo[b]furans/furo-pyridines were synthesized in good to excellent yields with a great diversity. (C) 2018 Elsevier Ltd. All rights reserved.