1,1‐Ethenediol: The Long Elusive Enol of Acetic Acid

摘要

Abstract > We present the first spectroscopic identification of hitherto unknown 1,1‐ethenediol, the enol tautomer of acetic acid. The title compound was generated in the gas phase through flash vacuum pyrolysis of malonic acid at 400?°C. The pyrolysis products were subsequently trapped in argon matrices at 10?K and characterized spectroscopically by means of IR and UV/Vis spectroscopy together with matching its spectral data with computations at the CCSD(T)/cc‐pCVTZ and B3LYP/6–311++G(2d,2p) levels of theory. Upon photolysis at λ =254?nm, the enol rearranges to acetic acid and ketene. </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> > 我们介绍了迄今未知的1,1- eNENENIOL，烯醇互变异构体的乙酸的第一个光谱鉴定。通过400℃的丙酸的闪蒸真空热解，在气相中产生标题化合物。随后将热解产物以10·k捕获在氩基矩阵中，并通过IR和UV / VI光谱表征在CCSD（T）/ CC-PCVTZ和B3LYP / 6-311 +上的计算匹配其光谱数据。 + g（2d，2p）理论水平。在光解 λ</ i> = 254？NM，烯醇重新排列为乙酸和乙烯烯。 </ 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-19011/'>《Angewandte Chemie》</a> <b style="margin: 0 2px;">|</b><span>2020年第14期</span><b style="margin: 0 2px;">|</b><span>共4页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> </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"> </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/1188.html" title="应用化学">应用化学;</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=enol&option=203" rel="nofollow">enol;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=matrix isolation&option=203" rel="nofollow">matrix isolation;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=photochemistry&option=203" rel="nofollow">photochemistry;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=prebiotic chemistry&option=203" rel="nofollow">prebiotic chemistry;</a> </p> <div class="translation"> 机译：enol;矩阵隔离;光化学;益生元化学; 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href="/patent-detail/06120106425363.html">一种乙二醇单甲醚、乙二醇单乙醚、乙二醇甲醚醋酸酯及乙二醇乙醚醋酸酯的检测方法</a> <b>[P]</b> . <span> 中国专利： CN102226792A </span> <span> . 2011-10-26</span> </div> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/patent-detail/06120111549275.html">一种煤质副产乙二醇与醋酸酐制备乙二醇单乙酸酯的方法</a> <b>[P]</b> . <span> 中国专利： CN109053437A </span> <span> . 2018-12-21</span> </div> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/patent-detail/06130455921557.html">PROCESS FOR PREPARATION OF 1,1-DIOXIDE AMIDE 6-CHLORINE-4-HYDROHY-2- METHYL-N-(2-PYRIDYL)-2H-THIENO-(2,3-E)-1,2-THIAZINE-3-CARBOXYLIC ACID ENOL ESTERS</a> <b>[P]</b> . <span> 外国专利：  SI8811992A </span> <span> . 1996-12-31</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：制备1,1-二酰胺的方法6-氯-4-氢-2-甲基-N-（2-吡啶基）-2H-硫代-（2,3-E）-1,2-噻嗪-3-的制备方法羧酸烯醇酯 </span> </p> </li> <li> <div> <b>4. </b><a class="enjiyixqcontent" href="/patent-detail/06130461981311.html">ENOL ETHER OF 1,1-DIOXIDE OF 6-CHLORO-4-HYDROXY-2-METHYL-N- (2-PYRIDYL-2H-THIENO(2,3-c)-1,2-THIAZINECARBOXYLIC ACID AMIDE, PROCESS OF ITS PREPARATION AND ITS USE</a> <b>[P]</b> . <span> 外国专利：  CZ8806951A3 </span> <span> . 1993-07-14</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：6-氯-4-羟基-2-甲基-N-（2-吡啶基-2H-噻吩并（2,3-c）-1,2-噻嗪羧酸酰胺的1,1-二氧化物的烯醇醚及其制备方法制剂及其用途 </span> </p> </li> <li> <div> <b>5. </b><a class="enjiyixqcontent" href="/patent-detail/06130461981701.html">ENOL ETHER OF 1,1-DIOXIDE OF 6-CHLORO-4-HYDROXY-2-METHYL-N- (2-PYRIDYL-2H-THIENO(2,3-c)-1,2-THIAZINECARBOXYLIC ACID AMIDE, PROCESS OF ITS PREPARATION AND ITS USE</a> <b>[P]</b> . <span> 外国专利：  CZ695188A3 </span> <span> . 1993-07-14</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：6-氯-4-羟基-2-甲基-N-（2-吡啶基-2H-噻吩并（2,3-c）-1,2-噻嗪羧酸酰胺的1,1-二氧化物的烯醇醚及其制备方法制剂及其用途 </span> </p> </li> </ul> </div> </div> </div> <div class="theme cardcommon" style="overflow: auto;display:none"> <h3 class="all_title" id="enpatent55">相关主题</h3> <ul id="subject"> </ul> </div> </div> </div> </div> <div class="right rightcon"> <div class="details_img cardcommon clearfix" style="margin-bottom: 10px;display:none;" > </div> </div> </div> <div id="thesis_get_original1" class="downloadBth" style="bottom: 19px;z-index: 999;" onclick="ywcd('0704028162032','4',7,2,1,'',this,24)" class="delivery" prompt="010401" title="通过人工服务将文献原文发送至邮箱" >获取原文</div> <div class="journalsub-pop-up" style="display: none"> <div class="journal-sub"> <h2>期刊订阅</h2> <img src="https://cdn.zhangqiaokeyan.com/img/loginclose.png" alt="关闭" onclick="$('.journalsub-pop-up').hide()"> <p class="pardon">抱歉，该期刊暂不可订阅，敬请期待！</p> <p 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