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Sol–Gel Immobilized N‐Heterocyclic Carbene Gold Complex as a Recyclable Catalyst for the Rearrangement of Allylic Esters and the Cycloisomerization of γ‐Alkynoic Acids

机译：将溶胶 - 凝胶固定为N-杂环卡贝金复合物作为可回收催化剂，用于重新排列烯丙基酯和γ-炔酸的环偶化

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Abstract > The synthesis of a bis‐silylated (NHC)AuCl (NHC=N‐heterocyclic carbene) complex and the formation of a hybrid silica material by the sol–gel process by cogelification with tetraethylorthosilicate under fluoride catalysis are described. This material was characterized by using 29 Si solid‐state NMR spectroscopy, N <sub>2</sub> sorption measurements, electron microscopy, and elemental analysis. It was tested as a reusable catalyst in the rearrangement of allylic esters in conjunction with a silver salt under microwave conditions and it displayed a much better performance than a homogeneous analogue. This catalyst is active and recyclable in the cycloisomerization of γ‐alkynoic acids to five‐membered enol‐lactones at room temperature in two reaction media, a toluene/water biphasic system and a deep eutectic solvent. </abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><Abstract Type =“Main”XML：Lang =“en”> <标题类型=“main”>抽象</ title> > 描述了通过在氟化物催化下与四乙酯硅酸盐的溶胶 - 凝胶法合成双甲硅烷基化（NHC）AuCl（NHC = N-杂环碳切菜）复合物和通过用四乙基甲基硅酸盐的凝胶法形成杂交二氧化硅材料。这种材料的特征在于使用 29 </ sup> Si固态NMR光谱，n <sub> 2 </ sub> 吸附测量，电子显微镜和元素分析。将其在微波条件下与银盐重新排列的可重复使用的催化剂，其与微波条件下的银盐一起进行，并且它显示出比均质类似物的性能更好。该催化剂在室温下在两个反应介质中的γ-炔酸酸的环丙异构中活性和可回收到五元烯醇内酯中的两个反应介质，甲苯/水双相系统和深对共晶溶剂。 </ p> </摘要> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" >著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-16041/'>《ChemCatChem》</a> <b style="margin: 0 2px;">|</b><span>2016年第17期</span><b style="margin: 0 2px;">|</b><span>共8页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Ferré Meritxell&option=202" target="_blank" rel="nofollow">Ferré Meritxell;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Catto?n Xavier&option=202" target="_blank" rel="nofollow">Catto?n Xavier;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Wong?Chi?Man Michel&option=202" target="_blank" rel="nofollow">Wong?Chi?Man Michel;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Pleixats Roser&option=202" target="_blank" rel="nofollow">Pleixats Roser;</a> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> <p>Department of Chemistry and Centro de Innovación en Química Avanzada (ORFEO-CINQA)Universitat Autònoma de Barcelona08193- Cerdanyola del Vallès (Barcelona) Spain;</p> <p>Inst. NéelCNRS and Univ Grenoble-Alpes38042 Grenoble France;</p> <p>Institut Charles Gerhardt Montpellier UMR 5253CNRS-Université de Montpellier-ENSCM34296- Montpellier France;</p> <p>Department of Chemistry and Centro de Innovación en Química Avanzada (ORFEO-CINQA)Universitat Autònoma de Barcelona08193- Cerdanyola del Vallès (Barcelona) Spain;</p> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li > <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span><a href="https://www.zhangqiaokeyan.com/clc/1186.html" title="物理化学（理论化学）、化学物理学">物理化学（理论化学）、化学物理学;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=carbene ligands&option=203" rel="nofollow">carbene ligands;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=gold&option=203" rel="nofollow">gold;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=immobilization&option=203" rel="nofollow">immobilization;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=sol–gel processes&option=203" rel="nofollow">sol–gel processes;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=supported catalysts&option=203" rel="nofollow">supported catalysts;</a> </p> <div class="translation"> 机译：卡宾配体;金;固定化;溶胶 - 凝胶工艺;支持的催化剂; </div> </li> </ul> </div> </div> <div class="literature cardcommon"> <div class="similarity "> <h3 class="all_title" id="enpatent66">相似文献</h3> <div class="similaritytab clearfix"> <ul> <li class="active" 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