پديد آورنده :
زارعي، امين
عنوان :
بهينه كردن سنتز سيليكا سولفوريك اسيد و كاربرد آن در تبديل گروههاي عاملي و همچنين بررسي واكنشهاي فريدل - كرافتس توسط دي فسفر پنتوكسيد تثبيت شده روي آلومينا
محل تحصيل :
اصفهان: دانشگاه صنعتي اصفهان، دانشكده شيمي
صفحه شمار :
هفده، 207،[II]ص.: مصور، جدول، نمودار
يادداشت :
ص. ع. به فارسي و انگليسي
استاد راهنما :
عبدالرضا حاجي پور
توصيفگر ها :
آلكيل يديدها , تيواستال ها , آسيلال ها , سولفون ها , نيتروآرن ها , دي تيولان ها
استاد داور :
مجيد مير محمد صادقي،فرج الله مهنازاده، ايرج محمدپور، عبدالحسين دباغ
كد ايرانداك :
ID166 دكتري
چكيده فارسي :
به فارسي و انگليسي: قابل رويت در نسخه ديجيتال
چكيده انگليسي :
Abstract Solid acid catalysts have been used as important functional materials for petroleumrefinery industry and for production of chemicals Since solid acids are enviromentallyfriendly with respect to less corrosiveness safty less waste and ease of sepration andrecovery replacement of liquid acids with solid acids is desirable in the chemical industry In this investigation we used silica sulfuric acid as a solid acid for some functional groupinterconversions Initially synthesis of this acid was optimized so that its capacityincreased from 0 0026 mol gr to 0 0043 mol gr Using NH4NO3 SSA some aromaticcompounds were nitrated to the corresponding nitro arenes Some aryl sulfunic acids wereprepared in the presence of silica sulfuric acid Benzylic and allylic alcohols wereconverted to the corresponding iodides using KI SSA system Aldehydes and ketones wereconverted to the corresponding 1 3 dithiolanes in the presence of 1 2 ethanedithiol andcatalytic amount of silica sulfuric acid These reactions were carried out under solvent freeconditions Deprotection of S S acetal compounds to their corresponding carbonylcompounds were carried out using NaNO3 SSA and wet SiO2 at room temperature Aldehydes were converted to the corresponding acylals in the presence of acetic anhydrideand catalytic amount of silica sulfuric acid These reactions were carried out under solvent free conditions Direct sulfonylation of aromatic rings were carried out with sulfonic acidsusing P2O5 Al2O3 Friedel crafts acylation of aromatic compounds were carried out usingP2O5 Al2O3 in the presenc of carbocxylic acids
استاد راهنما :
عبدالرضا حاجي پور
استاد داور :
مجيد مير محمد صادقي،فرج الله مهنازاده، ايرج محمدپور، عبدالحسين دباغ
