开发了一种基于咪唑鎓的活性离子液体混合物,可从简单的苯乙酮高效合成一些新颖的4,6-二芳基-3-(氯磺酰基)-1,2-氧代嘧啶-2,2-二氧化物(氯磺酰基-δ-磺内酯)。室内温度。离子液体混合物可充当催化剂,以缩合两个苯乙酮衍生物分子,并用作温和的磺化剂,以将所得的缩合物转化为4,6-二芳基-1,2-氧代嘧啶-2,2-二氧化物,最后作为氯磺化试剂,可在一锅中提供所需的完全不饱和的氯磺酰基-δ-磺内酯。容易从反应混合物中分离出产物,并显示出有价值的荧光性质。这些产物的结构与其1 H NMR,131 H NMR和质谱数据。版权所有。
A class of sulfonic ionicliquids, with the supremacy of methylsulfonylimidazolium triflate hydrochloride, was found to be efficient for catalyzing the self-condensation of acetophenone derivatives and sulfonating the resulting condensates in a one-pot rapid reaction leading to the synthesis of 4,6-diaryl-1,2-oxathiine-2,2-dioxides (diaryl-δ-sultones).
N-methyl-2-pyrrolidonium chlorosulfonate: An efficient ionic-liquid catalyst and mild sulfonating agent for one-pot synthesis of δ-sultones
作者:Kurosh Rad-Moghadam、Seyyed Ali Reza Mousazadeh Hassani、Saeedeh Toorchi Roudsari
DOI:10.1016/j.molliq.2016.02.082
日期:2016.6
lead to production of the desired 1,3-dienic δ-sultones in fairly high yields and short reaction times. Beside its role as a solvent, the NMP-ClSO3H salt efficiently catalyzes the self-condensation of acetophenones and plays as a mild sulfonating agent in conversion of the resulting condensates into δ-sultones. The reaction protocol is simple and follows a green work-up procedure that enables to recover
A sulfonating ionic liquid for one-pot pseudo four-component synthesis of novel 3-chlorosulfonyl-δ-sultones: A novel class of fluorescent compounds
作者:Saeedeh Toorchi Roudsari、Kurosh Rad-Moghadam
DOI:10.1016/j.tet.2018.06.012
日期:2018.7
An active imidazolium-based ionic liquid mixture was developed for efficient synthesis of some novel 4,6-diaryl-3-(chlorosulfonyl)-1,2-oxathiine-2,2-dioxides (chlorosulfonyl-δ-sultones) from simple acetophenones at room temperature. The ionic liquid mixture acts as a catalyst to condense two molecules of an acetophenone derivative and as a mild sulfonating agent to convert the resulting condensate
开发了一种基于咪唑鎓的活性离子液体混合物,可从简单的苯乙酮高效合成一些新颖的4,6-二芳基-3-(氯磺酰基)-1,2-氧代嘧啶-2,2-二氧化物(氯磺酰基-δ-磺内酯)。室内温度。离子液体混合物可充当催化剂,以缩合两个苯乙酮衍生物分子,并用作温和的磺化剂,以将所得的缩合物转化为4,6-二芳基-1,2-氧代嘧啶-2,2-二氧化物,最后作为氯磺化试剂,可在一锅中提供所需的完全不饱和的氯磺酰基-δ-磺内酯。容易从反应混合物中分离出产物,并显示出有价值的荧光性质。这些产物的结构与其1 H NMR,131 H NMR和质谱数据。版权所有。