دورية أكاديمية
Efficient Molybdenum Hydrazonato Epoxidation Catalysts Operating under Green Chemistry Conditions: Water vs. Decane Competition
العنوان: | Efficient Molybdenum Hydrazonato Epoxidation Catalysts Operating under Green Chemistry Conditions: Water vs. Decane Competition |
---|---|
المؤلفون: | Silvija Mrkonja, Edi Topić, Mirna Mandarić, Dominique Agustin, Jana Pisk |
المصدر: | Catalysts, Vol 11, Iss 7, p 756 (2021) |
بيانات النشر: | MDPI AG, 2021. |
سنة النشر: | 2021 |
المجموعة: | LCC:Chemical technology LCC:Chemistry |
مصطلحات موضوعية: | molybdenum, aroylhydrazone, epoxidation, catalysis, organic solvent-free process, TBHP in decane, Chemical technology, TP1-1185, Chemistry, QD1-999 |
الوصف: | Molybdenum compounds containing benzaldehyde-based hydrazones were obtained. The reaction in MeOH resulted with monomeric Mo complexes, [MoO2(L)(MeOH)], while the reaction in dichloromethane (DCM) provided oligomeric complexes, [MoO2(L)]n. The solid-state structures of the obtained compounds were investigated through Infrared Spectroscopy - Attenuated Total Reflection (IR-ATR), Thermogravimetric analysis (TGA), and via X-ray diffraction. The prepared molybdenum species were employed as cyclooctene epoxidation catalysts. TBHP (tert-butylhydroperoxide) in water and TBHP in decane were employed and compared as oxidants, with 0.25 mol% [Mo]. The catalyst activity and selectivity towards epoxide is >90% for all the reactions. The results have been linked to theoretical calculations, showing the importance of the first step, i.e., the transformation of [MoO2(L)(MeOH)] into the pentacoordinate [MoO2(L)]. |
نوع الوثيقة: | article |
وصف الملف: | electronic resource |
اللغة: | English |
تدمد: | 2073-4344 |
Relation: | https://www.mdpi.com/2073-4344/11/7/756; https://doaj.org/toc/2073-4344 |
DOI: | 10.3390/catal11070756 |
URL الوصول: | https://doaj.org/article/cd7ba82b23374079a2a2d358c142e235 |
رقم الأكسشن: | edsdoj.7ba82b23374079a2a2d358c142e235 |
قاعدة البيانات: | Directory of Open Access Journals |
تدمد: | 20734344 |
---|---|
DOI: | 10.3390/catal11070756 |