Nanoparticle Silica Supported Sulfuric Acid (NPs SiO2-H2SO4): A Solid Phase Acidic Catalyst for the One-Pot Synthesis of Benzo[a]Xanthene-11-One Derivatives
New nano-Fe<sub>3</sub>O<sub>4</sub>-supported Lewis acidic ionic liquid as a highly effective and recyclable catalyst for the preparation of benzoxanthenes and pyrroles under solvent-free sonication
magnetic nanomaterial-immobilized Lewisacidic ionic liquid was successfully synthesized by the covalent embedding of 3-(3-(trimethoxysilyl)propyl)-1H-imidazol-3-ium chlorozincate (II) ionic liquid to the surface of Fe3O4 nanoparticles. The material was then characterized by FT-IR, SEM, TEM, TGA, ICP-OES, Raman, and EDS. Its performance as a new-generation Lewisacidic catalyst was also examined on the
将3-(3-(三甲氧基甲硅烷基)丙基)-1 H-咪唑-3-氯锌酸盐( II )离子液体共价嵌入Fe 3 O表面,成功合成了一种新型磁性纳米材料固定化Lewis酸性离子液体4纳米粒子。然后通过 FT-IR、SEM、TEM、TGA、ICP-OES、拉曼和 EDS 对材料进行表征。其作为新一代路易斯酸性催化剂的性能也在超声介导的苯并氧杂蒽和吡咯合成中进行了检验。完成后,通过外部磁铁简单地回收催化剂以进行多次重复使用,而不会显着降低催化性能。
An efficient one-pot synthesis of tetrahydrobenzo[a]xanthene-11-one and diazabenzo[a]anthracene-9,11-dione derivatives under solvent free condition
Indium(III) chloride catalyzed one-potsynthesis of 12-aryl/alkyl-8,9,10,12-tetrahydrobenzo[a]xanthene-11-one and 8,10-dimethyl-12-aryl-8,12-dihydro-7-oxa-8,10-diazabenzo[a]anthracene-9,11-dionederivatives have been achieved by three component cyclocondensation of aldehydes, β-naphthol and cyclic 1,3-dicarbonyl compounds under solvent free condition in high yields. P2O5 too has been found as an effective
氯化铟(III)催化一锅合成12-芳基/烷基-8,9,10,12-四氢苯并[ a ]氧杂蒽-11-one和8,10-二甲基-12-芳基-8,12-二氢通过醛,β-萘酚和环状1,3-二羰基化合物在无溶剂条件下的三组分环缩合,可以高产率获得-7-氧杂-8,10-二氮杂苯并[ a ]蒽-9,11-二酮衍生物。还发现P 2 O 5是实现该转化的有效催化剂。