Hydroxyl Substitutional Effect on Selective Synthesis of cis, trans Stilbenes and 3-Arylcoumarins Through Perkin Condensation
摘要:
The substitutional effect in the selective synthesis of cis, trans stilbenes and 3-arylcoumarins has been described. The regio- and geometrical selectivity for synthesis of stilbene derivatives under the Perkin strategy strongly depends on the presence or absence of hydroxyl group as well as their positions in the phenyl ring. As a result, practical synthetic strategies were established for preparing various natural stilbenes including combretastatin A-4, pterostilbene, and resveratrol with satisfactory yields (49.2-63.7%).
Decarboxylation of α,β-unsaturated aromatic lactones: synthesis of<i>E-ortho</i>-hydroxystilbenes from 3-arylcoumarins or isoaurones
作者:Xihua Huang、Jie Liu、Jianfei Sheng、Xianheng Song、Zhibo Du、Mingkang Li、Xuejing Zhang、Yong Zou
DOI:10.1039/c7gc02994b
日期:——
A simple and environmentally friendly strategy for the synthesis of E-ortho-hydroxystilbenes has been established. Two kinds of α,β-unsaturatedaromatic lactones, i.e. the 3-arylcoumarins and the isoaurones, could both readily undergo a cascade hydrolyzation/decarboxylation reaction in the presence of KOH in ethylene glycol to afford the desired E-ortho-hydroxystilbenes in moderate to high yields.
Hydroxyl Substitutional Effect on Selective Synthesis of <i>cis, trans</i> Stilbenes and 3-Arylcoumarins Through Perkin Condensation
作者:Chun-Fen Xiao、Yong Zou、Jian-Li Du、Hong-Yi Sun、Xian-Ke Liu
DOI:10.1080/00397911.2010.538889
日期:2012.5.1
The substitutional effect in the selective synthesis of cis, trans stilbenes and 3-arylcoumarins has been described. The regio- and geometrical selectivity for synthesis of stilbene derivatives under the Perkin strategy strongly depends on the presence or absence of hydroxyl group as well as their positions in the phenyl ring. As a result, practical synthetic strategies were established for preparing various natural stilbenes including combretastatin A-4, pterostilbene, and resveratrol with satisfactory yields (49.2-63.7%).