炔烃

Hydration of Alkynes, Tautomerization.

炔烃的水化作用，互变异构化。

The tin hydride mediated alkenyl radical translocation/ cyclization process developed by Curran et al. represents a powerful procedure for the preparation of functionalized fivemembered rings by selective activation of a CH bond.

Curran等开发的以锡氢化物作为炔烃基团转位/环化反应的介质代表了用碳氢三键选择性活化法制备五员环官能团的高效反应步骤[2，3]。

The protonolysis of carbon-palladium bond with the assistance of bidentate nitrogen-containing ligands is the key step in this tandem reaction.

本论文立足于小组以前工作，以炔烃的乙酰氧钯化作为启动反应的方式，尝试发展Pd催化的反应和再生两价钯的新方法。

In conclusion, we have reported herein that dialkyl phosphites are powerful reagents for radical translocation/ cyclization reactions that start from readily available terminal alkynes.

最后， 有报道说，我们这里有强大的试剂磷酸烷基自由基易位/环化反应，从现成末端炔烃。

For example,the addition reaction with small molecular,the metathetical reaction with alkynes and Wittig reaction to prepare high-valent transtion-metal allenylidene complexes.

对于化合物11，详细研究了其与小分子加成反应、炔烃复分解反应以及通过Wittig反应制备高价态过渡金属丙二烯基卡宾化合物。

In chapter 4, we have described an improved method for the preparation of ethynylferrocene. Ethynylferrocene was prepared in satisfactory yield by reaction of formylferrocene with triphenylphosphine and carbon tetrachloride followed by dehydrohalogenation in the presence of n-BuLi.

第三章中，我们研究了钯催化下碘杂环化合物的羰基化—酰胺化反应、羰基化—酯化反应和与末端炔烃的羰基化交叉偶联反应，为一步合成多官能团化合物开辟了新的途径，同时，得到的这些产物经过进一步官能团转化后，可以成为一些天然产物合成中的重要中间体化合物。

The first part of this thesis summarized the synthetical condition and the latest application of various alkynes.

本论文第一部分对各种炔烃的合成条件作了系统综述。并对二茂铁乙炔近年来的应用作了概述。

A novel method for palladium-catalyzed cyclotrimerization of alkynes in supercritical carbon dioxide (scCO 2) has been developed.

研究了以超临界二氧化碳为反应介质溴化钯催化炔烃环三聚反应的新方法。

A novel method for palladium-catalyzed cyclotrimerization of alkynes in supercritical carbon dioxide (scCO2) has been developed.

摘要研究了以超临界二氧化碳为反应介质溴化钯催化炔烃环三聚反应的新方法。

Synthetic methodologies derived from electron-deficient alkynes studied by our group in recent 15 years are described.

对十五年来本小组所研究的从贫电子炔烃出发的合成方法学进行回顾，分四方面加以叙述。

Lugalbanda was a god and shepherd king of Uruk where he was worshipped for over a thousand years.

Lugalbanda 是神和被崇拜了一千年多 Uruk古埃及喜克索王朝国王。

I am coming just now,' and went on perfuming himself with Hunut, then he came and sat.

我来只是现在，'歼灭战perfuming自己与胡努特，那麼，他来到和SAT 。