Synthesis of 3-hydroxyindanones via potassium salt of amino acid catalyzed regioselective intramolecular aldolization of ortho-diacylbenzenes
摘要:
First organocatalytic intramolecular aldolization of ortho-diacylbenzenes to construct highly functionalized 3-hydroxyindanones is described. In this transformation a high trans-selectivity is achieved by the use of metal salt of amino acid. This method allows an easy access to the strained spiro-cyclic 3-hydroxyindanones related to a number of natural product frameworks. Synthesis of a new class of indole skeleton substituted by 3-hydroxyindanones added an extra essence to this new protocol. (C) 2015 Elsevier Ltd. All rights reserved.
Polystyrene-Supported Iodobenzene Diacetate (PSIBD)–Mediated Synthesis of 1,2-Diacylbenzenes from 2-Hydroxyaryl Aldehyde/Ketone Acylhydrazones
作者:Sunil Kumar、Devinder Kumar
DOI:10.1080/00397910802213752
日期:2008.10.22
Abstract Synthesis of some new 1,2-diacylbenzenes is described by the oxidation of 2-hydroxyaryl aldehyde/ketone acylhydrazones using polystyrene-supported iodobenzene diacetate (PSIBD) in good yield.