Synthesis of 2-BMIDA Indoles via Heteroannulation: Applications in Drug Scaffold and Natural Product Synthesis
作者:George E. Bell、James W. B. Fyfe、Eva M. Israel、Alexandra M. Z. Slawin、Matthew Campbell、Allan J. B. Watson
DOI:10.1021/acs.orglett.2c00959
日期:2022.4.29
A Pd-catalyzed heteroannulation approach for the synthesis of C2 borylated indoles is reported. The process allows access to highly functionalized 2-borylated indole scaffolds with complete control of regioselectivity. The utility of the process is demonstrated in the synthesis of borylated sulfa drugs and in the concisesynthesis of the Aspidosperma alkaloid Goniomitine.
Synthesis of complex aryl MIDA boronates by Rh-catalyzed [2+2+2] cycloaddition
作者:John M. Halford-McGuff、David B. Cordes、Allan J. B. Watson
DOI:10.1039/d3cc00761h
日期:——
A Rh-catalyzed [2+2+2] cycloaddition approach for the synthesis of BMIDA-functionalized arenes is reported. The developed method overcomes the long-standing reactivity problems associated with internal alkynes and allows access to highly functionalized borylated benzene scaffolds. The method is broadly functional group tolerant and generally high yielding. The utility of the products is demonstrated
Ethynyl MIDA boronate: a readily accessible and highly versatile building block for small molecule synthesis
作者:Justin R. Struble、Suk Joong Lee、Martin D. Burke
DOI:10.1016/j.tet.2010.04.020
日期:2010.6
Ethynyl N-methyliminodiacetic acid (MIDA) boronate is a very useful building block for small molecule synthesis. This compound can serve as both a bifunctional acetylene equivalent with the capacity for terminus-selective bis-functionalization and a versatile starting material for the preparation of a wide range of other MIDA boronate building blocks. (C) 2010 Elsevier Ltd. All rights reserved.