A special, efficient and reusable heterogeneous catalytic system is reported for the one‐pot three‐component synthesis of a series of malonamide and 2,3,4,5‐tetrahydrobenzo[b][1,4]oxazepine derivatives in the presence of a heterogeneous material composed of MCM‐48/H5PW10V2O40 in aqueousmedia and at room temperature. The products were identified using physical data (melting points) by comparison with
In this work, a novel one-pot multicomponent reaction of 2-aminophenols, Meldrum's acid, and isocyanides leads to the synthesis of tetrahydrobenzo[b][1,4]oxazepine or malonamide derivatives using 1 or 2 equiv of 2-aminophenols, respectively, in good to excellent yields at ambient temperature.
Environmentally friendly and highly efficient synthesis of benzoxazepine and malonamide derivatives using HPA/TPI-Fe<sub>3</sub>O<sub>4</sub>nanoparticles as recoverable catalyst in aqueous media
A magnetic inorganic–organic nanohybrid material (HPA/TPI‐Fe3O4 NPs) was produced as an efficient, highly recyclable and eco‐friendly catalyst for the one‐pot multi‐component synthesis of malonamide and 2,3,4,5‐tetrahydrobenzo[b][1,4]oxazepine derivatives with high yields in short reaction times (25–35 min) in aqueous media at room temperature. The nanohybrid catalyst was prepared by the chemical anchoring
磁性无机-有机纳米杂化材料(HPA / TPI-Fe 3 O 4 NPs)是一种高效,高度可回收和生态友好的催化剂,可用于单锅多组分合成丙二酰胺和2,3,4,5 -四氢苯并[ b ] [1,4]氮杂min庚因衍生物在室温下在水性介质中以较短的反应时间(25-35分钟)具有高收率。通过将H 6 P 2 W 18 O 62化学锚定在具有N的改性Fe 3 O 4纳米颗粒(NPs)的表面上来制备纳米混合催化剂。-[3-(三乙氧基甲硅烷基)丙基]异烟酰胺(TPI)接头。磁性可回收的催化剂易于循环至少十次而没有任何催化活性的损失。