Hydroxyapatite-Supported Palladium-Catalyzed Efficient Synthesis of (E)-2-Alkene-4-ynecarboxylic Esters. Intense Fluorescene Emission of Selected Compounds
摘要:
A simple procedure for the synthesis of substituted (E)-2-alkene-4-ynecarboxylic esters has been achieved using hydroxyapatite-supported palladium as efficient catalyst surface. The catalyst is recycled, and the turnover number (TON) based on Pd is 16000. A naphthyl-substituted derivative gives very intense fluorescence emission.
Expeditious enyne construction from alkynes via oxidative Pd(II)-catalyzed Heck-type coupling
作者:Victor Hadi、Kyung Soo Yoo、Min Jeong、Kyung Woon Jung
DOI:10.1016/j.tetlet.2009.02.217
日期:2009.5
The enyne, ubiquitous in natural products, can be a challenge to generate since these moieties require many synthetic transformations to assemble them. We developed a simpler protocol to construct enynes while we found that this oxidative reaction was tolerant in substrate scope. in addition, the utility of this reaction was demonstrated through the attempt in synthesizing antifungal agent Lamisil (TM). (C) 2009 Elsevier Ltd. All rights reserved.
Hydroxyapatite-Supported Palladium-Catalyzed Efficient Synthesis of (<i>E</i>)-2-Alkene-4-ynecarboxylic Esters. Intense Fluorescene Emission of Selected Compounds
作者:Brindaban C. Ranu、Laksmikanta Adak、Kalicharan Chattopadhyay
DOI:10.1021/jo800209z
日期:2008.7.1
A simple procedure for the synthesis of substituted (E)-2-alkene-4-ynecarboxylic esters has been achieved using hydroxyapatite-supported palladium as efficient catalyst surface. The catalyst is recycled, and the turnover number (TON) based on Pd is 16000. A naphthyl-substituted derivative gives very intense fluorescence emission.