Moisture Stable Dialkylimidazolium Salts as Heterogeneous and Homogeneous Lewis Acids in the Diels-Alder Reaction

Influence of Chiral Ionic Liquids on the Excited-State Properties of Naproxen Analogs

“…The crude residue was purified via flash chromatography (100% ethyl acetate) to provide the desired compound. 1 Synthesis and Decoloration of Nonracemic Low-Melting Organic Salts. Room-temperature nonracemic ILs (a) and (b) ( Figure 2) were prepared according to a previously published procedure.…”

Líquidos iônicos contendo o cátion dialquilimidazólio: estrutura, propriedades físico-químicas e comportamento em solução

“…Estes compostos despertaram grande interesse em domínios como a eletroquímica 9 , baterias, solventes para análise espectroscópica de compostos metálicos 10 e como solventes e catalisadores ácidos para reações orgânicas 4,[11][12][13] . No início da década de noventa, misturas ternárias contendo cloreto de 1-n-butil-3-metilimidazólio (BMI.Cl) 14 , tricloreto de alumínio e um halogeneto de alquilalumínio (AlR x Cl 3-x ) foram introduzidas como solventes para a dimerização catalítica de olefinas em meio bifásico, utilizando catalisadores de ní-quel.…”

Preparation of α-Bromoketones and Thiazoles from Ketones with NBS and Thioamides in Ionic Liquids

“…Ionic liquids offer interesting and useful features that are advantageous to organic reactions such as negligible vapor pressure, nonflammability, high thermal stability, and easy reusability. In this regard, ionic liquids have been successfully used in the Friedel-Crafts reaction [31][32][33], hydrogenation [34][35][36], Diels-Alder reactions [37][38][39], Mizoroki-Heck, Suzuki-Miyaura, Sonogashira, and olefin metathesis reactions [40][41][42][43][44], Michael additions [45], oxidation [46][47][48][49][50][51][52][53][54], condensation reaction [55][56][57][58][59], formation of imines [60], 1,2-rearrangement [61], esterification of carboxylic acids and carboxylates [62][63][64][65], Williamson ether synthesis [66][67][68][69][70][71][72], and the Grignard reaction [73,74]. We have reported efficient methods for the esterification of carboxylic acids and phosphonic acids with trialkyl orthoacetate in ionic liquid <...>…”