Efficient one-pot trans-dihydroxylation of 2H-pyrans using dimethyldioxirane (DMD): synthesis of trans-3,4-dihydroxy-3,4-dihydro-O-methyloctandreolones, orixalone D, and trans-3,4-dihydroxy-3,4-dihydromollugin natural products
摘要:
An efficient one-pot formation of trans-diols on 2H-pyranyl rings was achieved by dimethyldioxirane in wet acetone. This new methodology was applied to the synthesis of natural products containing trans-diol on the pyranyl rings such as trans-3,4-dihydroxy-3,4-dihydro-0-methyloctandreolones, orixalone D, and trans-3,4-dihydroxy-3,4-dihydromollugin. (c) 2007 Elsevier Ltd. All rights reserved.
Efficient Synthesis of Substituted Pyranoquinolinones from 2,4-Dihydroxyquinoline: Total Synthesis of Zanthosimuline, <b><i>cis</i></b>-3<b>′</b>,4<b>′</b>-Dihydroxy-3<b>′</b>,4<b>′</b>-dihydroflindersine, and Orixalone D
作者:Yong Lee、Xue Wang
DOI:10.1055/s-2007-983893
日期:2007.10
A convenient and efficient synthesis of pyranoquinoli-nones was achieved using the ethylenediamine diacetate catalyzed reactions of 2,4-dihydroxyquinoline and a variety of α,β-unsaturated aldehydes in good yield. The key feature of these reactions is the formal [3+3] cycloaddition. This new methodology was applied successfully to the total synthesis of naturally occurring pyranoquinolinone alkaloids
使用乙二胺二乙酸酯催化的 2,4-二羟基喹啉和多种 α,β-不饱和醛的反应以良好的收率实现了一种方便高效的吡喃喹啉酮合成。这些反应的关键特征是正式的 [3+3] 环加成。这种新方法成功地应用于天然存在的吡喃喹啉酮生物碱、zanthosimuline、CIS-3',4'-dihydroxy-3',4'-dihydroflindersine 和 orixalone D 的全合成。
Total Syntheses of Pyranoquinoline Alkaloids: Simulenoline, Huajiaosimuline, and (±)-7-Demethoxyzanthodioline
作者:Michael J. McLaughlin、Richard P. Hsung
DOI:10.1021/jo001368h
日期:2001.2.1
Brown et al., Australian Journal of Chemistry, 1954, vol. 7, p. 348,369