完整的细节以及对范围,局限性的研究,以及进一步阐述从2-溴-和2-氯-6-碘-合成2,5,7-三取代的苯并[ b ]呋喃的简单方法。描述了通过连续的铜和/或钯催化的组装和官能化过程的4-取代的苯酚。C(7)位置的功能化是通过Suzuki-Miyaura交叉偶联,炔基化,烯基化和C–N键形成反应进行的。还报道了一锅法合成2,5,7-三取代的苯并[ b ]呋喃。
完整的细节以及对范围,局限性的研究,以及进一步阐述从2-溴-和2-氯-6-碘-合成2,5,7-三取代的苯并[ b ]呋喃的简单方法。描述了通过连续的铜和/或钯催化的组装和官能化过程的4-取代的苯酚。C(7)位置的功能化是通过Suzuki-Miyaura交叉偶联,炔基化,烯基化和C–N键形成反应进行的。还报道了一锅法合成2,5,7-三取代的苯并[ b ]呋喃。
A straightforward approach to the synthesis of 2,5,7-trisubstituted benzo[b]furans from 2-bromo- and 2-chloro-6-iodo-4-substituted phenols through a consecutive copper- and/or palladium-catalyzed assembly and functionalization process is described. Functionalization at the C(7) position is carried out by Suzuki–Miyauracross-coupling and C–N bond forming reactions.
通过连续的铜和/或钯催化的组装,由2-溴和2-氯-6-碘-4-取代的苯酚合成2,5,7-三取代的苯并[ b ]呋喃的直接方法。描述了功能化过程。C(7)位置的功能化是通过Suzuki-Miyaura交叉偶联和C-N键形成反应进行的。
Enhancing the Synthetic Utility of 3-Haloaryne Intermediates by Their Efficient Generation from Readily Synthesizable <i>ortho</i>-Iodoaryl Triflate-type Precursors
Generation of 3-haloarynes from o-iodoaryl triflate-type precursors is reported. The method enables the generation of 3-fluorobenzyne with significantly high electrophilicity at −78 °C, allowing the formation of a three-component-coupled product between 3-fluorobenzyne, tetrahydrofuran that is used as a solvent, and a thiol. The ready availability of the precursors and the orthogonality in the conditions
One-Pot Synthesis of Heteroatom-Bridged Cyclic Diaryliodonium Salts
作者:Mattis Damrath、Lucien D. Caspers、Daniel Duvinage、Boris J. Nachtsheim
DOI:10.1021/acs.orglett.2c00691
日期:2022.4.8
Two one-pot procedures for the construction of O- and N-bridged diaryliodonium triflates are described. An effective aryne-mediated arylation of o-iodophenols and -sulfonamides provides diarylether and diarylamine intermediates, which are subsequently oxidized and cyclized to the corresponding diaryliodaoxinium and -iodazinium salts. Different derivatizations were applied to demonstrate their capacity
Indole and benzofuran 2-carboxamide derivatives and uses thereof
申请人:Bamberg Joe Timothy
公开号:US20080146587A1
公开(公告)日:2008-06-19
Compounds of formula I or formula II:
or pharmaceutically acceptable salts thereof, wherein m, n, p, Ar R
1
, R
2
, R
4
, and R
5
are as defined herein. The invention also provides methods for preparing, compositions comprising, and methods for using compounds.