查询词典 alkynes

Alkanes, alkenes, and alkynes are all hydrocarbons (compounds made up of hydrogen and carbon only).

链烷、链烯和链炔都是碳氢化合物（纯净的碳和氢所组成的化合物）。

Table 2 shows names for some alkyl groups, alkanes, alkenes and alkynes.

表2显示了一些烷基、烷烃、烯烃及炔烃的命名。

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。

Alkynes have one or more triple bonds, the carbon atoms sharing three pairs of electrons.

链炔有一个或超过三个共价键，即碳原子享有三对电子。

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。

In addition, we also studied the asymmetric Baylis-Hillman reactions of alkynes with aryaldehydes and the application of the dibrominated compounds in palladium-catalyzed coupling reactions.

对于贫电子炔类的化合物不对称的Baylis-Hillman反应以及二溴化合物的应用转换也进行了初步的研究。

Progress in a variety of catalytic systems-catalyzed dimerizations of terminal alkynes to synthesize enynes is summarized.

综述了不同催化体系催化末端炔烃二聚反应合成共轭烯炔化合物的研究进展。

List alkanes,alkenes,and terminal alkynes in order of decreasing acidity of their terminal C-H.

答：由大到小排列烷，烯和端炔的端碳氢键的酸性

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。