Method for determination of cesium hydroxide in workplace air by flame atomic absorption spectrometry 工作场所空气中氢氧化铯的火焰原子吸收测定法
Highly Selective Synthesis of ( Z)-1,2-Bis ( arylseleno)-1-alkenes via Addition of Diaryl Diselenides to Terminal Acetylenes Catalyzed by Cesium Hydroxide 氢氧化铯催化下,二芳基二硒醚对端炔的加成:高选择性合成(Z)-1,2-二芳硒基烯
It has been researched on the reaction of terminal acetylenes with diaryl diselenides catalyzed by cesium hydroxide. 本文研究在氢氧化铯催化下,二芳基二硒醚和炔烃的反应。
Compared with other inorganic bases ( LiOH, NaOH, KOH), we found that cesium hydroxide is the best catalyst because of it "cesium effect". 由于铯离子效应,氢氧化铯的与其它无机碱(LiOH,NaOH,KOH)的相比,催化效果最好。
Cesium hydroxide can reaction with organic weak acid to form carbon anion or nucleophilic heteroatom anions. Because the static electricity between the cesium ion and anion is weak, so the anions demonstrated strong nucleophilic. 氢氧化铯可以与有机弱酸作用,形成亲核的碳负离子或杂原子负离子,由于铯离子与阴离子之间的静电力较弱,使与之键合的阴离子表现出强的亲核性。
The organic reaction promoted by cesium hydroxide often has characteristics of environmentally-benign, the simplicity of operator, mild reactive conditions, easy post-processing and so on. 氢氧化铯促进的有机反应往往具有环境友好,反应条件温和,后处理容易等特点。