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。
Efficient and Reliable Iodination and O-Methylation of Fluorinated Phenols
作者:Robert Francke、Gregor Schnakenburg、Siegfried R. Waldvogel
DOI:10.1002/ejoc.201000161
日期:2010.4
Fluorinatedphenols and other electron-deficient phenolic substrates are efficiently and cleanly iodinated by an iodine/ iodide mixture employing alkaline conditions. This protocol turned out to be the most practical for the generation of such highly fluorinated iodophenols. For later application in coupling processes the protection of the phenolic hydroxy moiety is often required. Therefore, a practical
Glucagon Receptor Antagonist Compounds, Compositions Containing Such Compounds And Methods Of Use
申请人:Kim Ronald M.
公开号:US20090209564A1
公开(公告)日:2009-08-20
Glucagon receptor antagonist compounds are disclosed. The compounds are useful for treating type 2 diabetes and related conditions. Pharmaceutical compositions and methods of treatment are also included.