Thiazolium-ion based organic ionic liquids (OILs).1,2 Novel OILs which promote the benzoin condensation
摘要:
4- and 5-methyl thiazole are readily alkylated with n-butyl bromide followed by anion exchange of Br- for BF4- to give mobile, room-temperature ionic liquids. These liquids, when treated with small quantities of triethylamine, serve to promote the benzoin condensation of benzaldehyde. (C) 1999 Elsevier Science Ltd. All rights reserved.
控制高度极化的硫属化物材料的表面化学和形态是一个非常有趣的挑战,因为它可能会导致电化学、催化和气相分离等各个领域的突破。考虑到这一点,研究了一种合成结构化 Ge 基硫属化物产品的新方法。它涉及使用四乙氧基锗 (TEOG) 和硫代乙酰胺以及离子液体 (IL) 作为结构剂。这种创新的合成工艺有两个主要优点:它在软条件下进行,并且还可以对获得的混合有机-GeS2 颗粒进行形态控制。在没有 IL 的情况下,合成导致纳米球团聚,而离子液体的引入导致微球或石膏玫瑰花状颗粒。已经清楚地强调,混合有机-GeS2 颗粒的形态在很大程度上取决于 IL 阳离子部分的性质。
thioacetamide with an ionicliquid (IL) as structuringagent. This innovative synthesis process has two main advantages: it is performed under soft conditions, and it also enables the morphological control of the obtained hybrid organic–GeS2 particles. In the absence of the IL, the synthesis leads to an agglomeration of nanospheres, whereas the introduction of the ionicliquid leads either to microspheres
控制高度极化的硫属化物材料的表面化学和形态是一个非常有趣的挑战,因为它可能会导致电化学、催化和气相分离等各个领域的突破。考虑到这一点,研究了一种合成结构化 Ge 基硫属化物产品的新方法。它涉及使用四乙氧基锗 (TEOG) 和硫代乙酰胺以及离子液体 (IL) 作为结构剂。这种创新的合成工艺有两个主要优点:它在软条件下进行,并且还可以对获得的混合有机-GeS2 颗粒进行形态控制。在没有 IL 的情况下,合成导致纳米球团聚,而离子液体的引入导致微球或石膏玫瑰花状颗粒。已经清楚地强调,混合有机-GeS2 颗粒的形态在很大程度上取决于 IL 阳离子部分的性质。
Facile Synthesis of Highly Substituted 3-Aminofurans from Thiazolium Salts, Aldehydes, and Dimethyl Acetylenedicarboxylate
作者:Cheng Ma、Hanfeng Ding、Guangming Wu、Yewei Yang
DOI:10.1021/jo051513x
日期:2005.10.1
A facile preparation of 3-aminofuran derivatives via multicomponent reactions of thiazole carbenes, aldehydes, and dimethylacetylenedicarboxylate (DMAD) is reported. In this process, the thiazole carbenes, generated in situ from thiazolium salts, reacted with aldehydes and DMAD at −78 to 0 °C in CH2Cl2 to afford the substituted furans in moderate to good yields. Eight substituted thiazolium salts
Concise Assembly of Highly Substituted Furan-Fused 1,4-Thiazepines and Their Diels−Alder Reactions with Benzynes
作者:Hanfeng Ding、Yiping Zhang、Ming Bian、Weijun Yao、Cheng Ma
DOI:10.1021/jo702299m
日期:2008.1.1
A facile and highly efficient three-component reaction of thiazole or benzothiazole carbenes, disubstituted ketenes, and activated alkynes is disclosed. With this methodology, a polysubstituted ring system containing furo[2,3-c]thiazepine core can be constructed from simple and readily accessible starting materials in good yields. The scope and limitation of this transformation were investigated in detail by using various thiazole carbene, ketene, and alkyne components. Furthermore, the synthetic utilities of these unique polyheterocyclic compounds were demonstrated via their Diels-Alder reactions with benzynes to furnish thiazepine-fused 7-oxanorbornadiene derivatives in excellent yields.
A Ring-Expansion Methodology Involving Multicomponent Reactions: Highly Efficient Access to Polysubstituted Furan-Fused 1,4-Thiazepine Derivatives
作者:Cheng Ma、Hanfeng Ding、Yiping Zhang、Ming Bian
DOI:10.1002/anie.200602836
日期:2006.11.27
Heteroatom-Containing Porous Carbons Derived from Ionic Liquid-Doped Alkali Organic Salts for Supercapacitors
作者:Jingyue Zhu、Dan Xu、Wenjing Qian、Jinyu Zhang、Feng Yan
DOI:10.1002/smll.201600010
日期:2016.4
not only incorporates the heteroatoms into the carbon frameworks but also highly improves the carbonization yield, as compared with that of either alkali organic salts or ILs as precursors. The porous structure of CMs can be tuned by adjusting the feed ratio of ILs. The porous CMs derived from 1‐butyl‐3‐methylimidazolium chlorine‐doped sodium glutamate exhibit high charge storage capacity with a specific
通过使用掺杂离子液体(IL)的碱金属有机盐作为小分子前体,开发了一种杂原子掺杂的多孔碳材料(CMs)合成的简单策略。用含IL的杂原子(包括1-丁基-3-甲基咪唑鎓氯和3-丁基-4-甲基噻唑溴化)掺杂碱性有机盐(如谷氨酸钠,酒石酸钠和柠檬酸钠)不仅将杂原子掺入碳骨架中与碱金属有机盐或ILs的前驱体相比,它还能大大提高碳化率。可以通过调节IL的进料比来调整CM的多孔结构。源自1-丁基-3-甲基咪唑鎓氯掺杂的谷氨酸钠的多孔CM具有高电荷存储容量,比电容为287 F g -1超级电容器的电流密度为1 A g -1时,在6 m KOH中的5000个循环中具有良好的稳定性。该策略为合成杂原子掺杂的多孔CM开辟了一种简单有效的方法。