E. Mosaddegh, A. Hassankhani, S. Pourahmadi, D. Ghazanfari
{"title":"球磨机辅助制备纳米caco3作为新型绿色催化剂的蛋壳废料:吡喃[4,3-b]吡喃合成的绿色途径","authors":"E. Mosaddegh, A. Hassankhani, S. Pourahmadi, D. Ghazanfari","doi":"10.1177/1943089213507160","DOIUrl":null,"url":null,"abstract":"Ball mill–assisted preparation of nano-bio Calcite (CaCO3) based on avian shell and its application as a novel, biodegradable, and heterogeneous catalyst with high catalytic activity and reusability in the green and high efficient synthesis of pyrano[4,3-b]pyrans via a condensation reaction of different aromatic aldehydes, malononitrile, and 4-hydroxy-6-methyl-2H-pyran-2-one at 120°C under solvent-free conditions is reported. The reaction proceeds to completion within 5–30 min in 90–98% yield. The nanocatalyst was characterized by X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET), scanning electron microscope (SEM), elemental analysis, and laser particle sizer.","PeriodicalId":13985,"journal":{"name":"International Journal of Green Nanotechnology","volume":"25 1","pages":"1943089213507160"},"PeriodicalIF":0.0000,"publicationDate":"2013-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"22","resultStr":"{\"title\":\"Ball Mill–assisted Preparation of Nano-CaCO3 as a Novel and Green Catalyst–based Eggshell Waste: A Green Approach in the Synthesis of Pyrano[4,3-b]pyrans\",\"authors\":\"E. Mosaddegh, A. Hassankhani, S. Pourahmadi, D. Ghazanfari\",\"doi\":\"10.1177/1943089213507160\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Ball mill–assisted preparation of nano-bio Calcite (CaCO3) based on avian shell and its application as a novel, biodegradable, and heterogeneous catalyst with high catalytic activity and reusability in the green and high efficient synthesis of pyrano[4,3-b]pyrans via a condensation reaction of different aromatic aldehydes, malononitrile, and 4-hydroxy-6-methyl-2H-pyran-2-one at 120°C under solvent-free conditions is reported. The reaction proceeds to completion within 5–30 min in 90–98% yield. The nanocatalyst was characterized by X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET), scanning electron microscope (SEM), elemental analysis, and laser particle sizer.\",\"PeriodicalId\":13985,\"journal\":{\"name\":\"International Journal of Green Nanotechnology\",\"volume\":\"25 1\",\"pages\":\"1943089213507160\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2013-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"22\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"International Journal of Green Nanotechnology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1177/1943089213507160\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"International Journal of Green Nanotechnology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1177/1943089213507160","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Ball Mill–assisted Preparation of Nano-CaCO3 as a Novel and Green Catalyst–based Eggshell Waste: A Green Approach in the Synthesis of Pyrano[4,3-b]pyrans
Ball mill–assisted preparation of nano-bio Calcite (CaCO3) based on avian shell and its application as a novel, biodegradable, and heterogeneous catalyst with high catalytic activity and reusability in the green and high efficient synthesis of pyrano[4,3-b]pyrans via a condensation reaction of different aromatic aldehydes, malononitrile, and 4-hydroxy-6-methyl-2H-pyran-2-one at 120°C under solvent-free conditions is reported. The reaction proceeds to completion within 5–30 min in 90–98% yield. The nanocatalyst was characterized by X-ray diffraction (XRD), Brunauer–Emmett–Teller (BET), scanning electron microscope (SEM), elemental analysis, and laser particle sizer.