NMR spectroscopy of organolithium compounds, part XXXIII          href='#poc3800-note-0010'/>        :        <i >transtrans        ‐2,3‐dimethylcyclopropyllithium aggregation in diethylether: An equilibrium between three different complexes of comparable energy and the influence of LiBr on aggregate structure          href='#poc3800-note-0011'/>

Fox Thomas; Günther Harald

摘要

Abstract > The aggregate formation of <fi>trans</fi> ‐2,3‐dimethylcyclopropyllithium ( 2 ) was studied in diethylether (DEE). With the help of the isotopic fingerprint method three clusters, a <fi>monomer</fi> , a <fi>dimer</fi> , and a <fi>fluxional tetramer</fi> in the ratio 1.00:0.53:0.22 were identified at 187?K. In the presence of 1 equivalent of LiBr cyclopropyllithium ( 1 ) forms in DEE at 163?K a mixed dimer and a mixed tetramer, while in THF a mixed dimer dominates. Under the same conditions 2 and 2,2,3,3‐tetramethylcyclopropyllithium ( 3 ) form in the solvent mixture DEE/THF (1:1) mixed dimers, as does 2 also in THF. </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> > <fi>反式</ fi> -2,3-二甲基环丙基锂的聚合形成（在二乙醚（DEE）中研究了<B> 2 / b>。在同位素指纹方法的帮助下，三个</ i>簇，<fi>单体</ fi，a <fi>二聚体</ fi>，以及<fi>孔径四聚物中的<fi> 在187℃下鉴定1.00：0.53：0.22的比率1.00：0.53：0.22。在1当量的LIBR环丙基锂（ 1 / b>）中在甲基中形成混合二聚体和混合四聚体，而在THF中的混合二聚体中占主导地位。在溶剂混合物DEE / THF（1：1）混合二聚体中，在相同的条件下在相同的条件下形成2,2,3,3-四甲基环丙基锂（ 3℃），如混合二聚体 2 </ b>也在THF中。 </ p> </ abstract> </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-35546/'>《Journal of Physical Organic Chemistry》</a> <b style="margin: 0 2px;">|</b><span>2018年第5期</span><b style="margin: 0 2px;">|</b><span>共11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=Fox Thomas&option=202" target="_blank" rel="nofollow">Fox Thomas;</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Günther Harald&option=202" target="_blank" rel="nofollow">Günther Harald;</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>University of ZürichInstitute of ChemistryZürich Switzerland;</p> <p>University of SiegenChemistry DepartmentSiegen Germany;</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/4796.html" title="有机化学一般性问题">有机化学一般性问题;</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=13 C NMR&option=203" rel="nofollow">13 C NMR;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=1 H NMR&option=203" rel="nofollow">1 H NMR;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=6 Li NMR&option=203" rel="nofollow">6 Li NMR;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=aggregation&option=203" rel="nofollow">aggregation;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=cyclopropyllithium&option=203" rel="nofollow">cyclopropyllithium;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=exchange&option=203" rel="nofollow">exchange;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=NMR&option=203" rel="nofollow">NMR;</a> </p> <div class="translation"> 机译：13 C NMR;1 H NMR;6 Li NMR;聚集;环丙基锂;交换;NMR; </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" >外文文献</li> </ul> </div> <div class="similarity_details"> <ul > <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/journal-foreign-detail/0704025793638.html">NMR spectroscopy of organolithium compounds, part XXXIII href="#poc3800-note-0010"/> : <i >transtrans ‐2,3‐dimethylcyclopropyllithium aggregation in diethylether: An equilibrium between three different complexes of comparable energy and the influence of LiBr on aggregate structure href="#poc3800-note-0011"/></a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Fox Thomas&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Fox Thomas,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Günther Harald&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Günther Harald </a> <a href="/journal-foreign-35546/" target="_blank" rel="nofollow" class="tuijian_authcolor">Journal of Physical Organic Chemistry .</a> <span>2018</span><span>,第5期</span> </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：有机锂化合物的NMR光谱，部分XXXIII <LINK HREF =“#POC3800-NOUTE-0010”/>：<I>反式 - 2,3-二甲基环丙基锂聚集在二乙醚：三种不同复合物之间的平衡能量和LILL在骨料结构中的影响 href =“＃poc3800-noto-0011”/></span> </p> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/journal-foreign-detail/070406284703.html">NMR spectroscopy of organolithium compounds. XXVI - The aggregation behaviour of methyllithium in the presence of LiBr and LiI in diethyl ether and tetrahydrofuran</a> <b>[J]</b> . <span> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Fox T&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Fox T,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Hausmann H&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Hausmann H,</a> <a href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=Gunther H&option=202" target="_blank" rel="nofollow" class="tuijian_auth tuijian_authcolor">Gunther H </a> <a href="/journal-foreign-24320/" target="_blank" rel="nofollow" class="tuijian_authcolor">Magnetic Resonance in Chemistry: MRC .</a> <span>2004</span><span>,第9期</span> </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：有机锂化合物的NMR光谱。 XXVI-在LiBr和LiI存在下在乙醚和四氢呋喃中甲基锂的聚集行为</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('0704025793638','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 class="current">目前支持订阅全部北京大学中文核心（2020）期刊目录。</p> <div style="display: flex;margin-top: 69px;justify-content: space-between;"> <div 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