Based on the investigations of the co-adsorption behavior of acetophenone and hydrogen, we conclude that keto-enol tautomerization occurs in the intramolecular process and does not involve hydrogen transfer through the surface hypothesized previously....
登录发一波弹幕一吐为快吧! 发送 分享: 播单 手机看 下载 顶爱问公开课堂 关注 推荐出品人 加入自媒体 新奇影音 小司文化 陈晟老师课堂 衣哥 凯文有话说 KUN音乐会 美女教你摇太阳桌舞,这舞蹈姿势真是阳光活力的满满的 水杯里这样子能做出微景观,这手艺真是有技术有美感 等待大丰收的喜悦,大片葱...
79.Keto-enol tautomerization-醛酮的烯醇式转化 本视频介绍了醛酮的烯醇式转化相关知识 可汗学院:MCAT考试-化学课程(网易公开课编辑整理)
2) keto-enol tautomerism 酮-烯醇互变异构 1. The keto-enol tautomerism of α-carbonylcyclododecanones has been studied by means of 1H NMR technology. 利用1H NMR技术研究了α-羰基环十二酮的酮-烯醇互变异构。3) enol-keto tautomersim 烯醇-酮互变异构...
Novo (1991) Keto-enol tautomerization of 2-(20-hy- droxyphenyl)benzoxazole and 2-(20-hydroxy-40-methylphenyl) benzoxazole in the triplet state: ... H Eisenberger,B Nickel,AA Ruth,... - 《Cheminform》 被引量: 130发表: 1991年 Excited-state intramolecular proton transfer and rotamerism of...
Thermodynamic and kinetic driving force for keto-enol tautomerism in guanine, guanine-cytosine and alkylated guanine has been studied in gas as well as in aqueous phase using density functional theory (DFT). Variation of DFT based reactivity descriptors were observed along the IRC pathway. Energy ba...
This suggested that keto–enol tautomerization plays a significant role in the action mechanism of these α-substituted acetophenones. In order to corroborate this conclusion, two related compounds were synthesized which could not undergo keto–enol tautomerization. Their bioassay proved them to be ...
The Keto-Enol Equilibrium of Pentane-2,4-dione Studied by ab initio Methods The mechanism of the keto-enol interconversion of pentane-2,4-dione (trivial name: acetylacetone, acac) was examined at the restricted Hartree-Fock (HF) le... Vassil,B.,Delchev,... - 《Monatshefte Für Chemie》 ...
The alkyl enol-diketones, thus formed, undergo thermal tautomerization to the original keto forms in a few days. The alkyl enol-diketones show fast internal conversion from the excited singlet state to the ground state without yielding the corresponding isomeric forms (rotamer). Based on the ...
keto–enol tautomerization on metalsmodel heterogeneous catalysisscanning tunneling microscopyvibrational spectroscopy on surfacesTautomerisation of simple carbonyl compounds to their enol counterparts on metal surfaces is envisaged to enable an easier route for hydrogenation of the C=O bond in heterogeneously...