5447-52-9Relevant articles and documents
Ash of pomegranate peels (APP): A bio-waste heterogeneous catalyst for sustainable synthesis of α,α′-bis(substituted benzylidine)cycloalkanones and 2-arylidene-1-tetralones
Patil, Rupesh C.,Patil, Uttam P.,Jagdale, Ashutosh A.,Shinde, Sachinkumar K.,Patil, Suresh S.
, p. 3527 - 3543 (2020/05/13)
Abstract: α,α′-bis(substituted benzylidene)cycloalkanones were efficiently prepared from variously substituted aldehydes and cycloalkanones in water by using ash of pomegranate peels (APP) as a catalyst. The APP-catalyst was obtained from bio-waste by simple thermal treatment to dry peels of pomegranate fruit and formation of its active phase was confirmed by FT-IR, XRD, XRF, EDX, SEM, DSC-TGA and BET techniques. The analysis revealed that the present catalyst has basic sites which promote the synthesis of desired products. The main attractions of our protocol are utilization of highly abundant bio-waste-derived catalyst and good-to-excellent yield in shortest reaction time. This green protocol was further extended for structurally diverse 2-arylidene-1-tetralones by condensation of equimolar quantity of aromatic aldehydes and 1-tetralone at low temperature. The catalyst could be quantitatively recovered and reused effectively for five times. Graphic abstract: [Figure not available: see fulltext.].
Synthesis and fluorescence properties of α,α'-bis(substituted- benzylidene)cycloalkanones catalyzed by 1-methyl-3(2-(sulfooxy)ethyl)-1h- imidazol-3-ium chloride
Wan, Yu,Chen, Xiu-Mei,Pang, Li-Ling,Ma, Rui,Yue, Cai-Hui,Yuan, Rui,Lin, Wei,Yin, Wei,Bo, Rong-Cheng,Wu, Hui
experimental part, p. 2320 - 2328 (2010/09/10)
-Bis(substituted-benzylidene)cycloalkanones were synthesized via a solvent-free cross-aldol condensation of aromatic aldehydes with cycloalkanones in the presence of a catalytic amount 1-methyl-3(2-(sulfooxy)ethyl)-1H-imidazol- 3-ium chloride at room temperature with excellent yields. The screening for optical properties indicated that the size of cycloalkanone has an influence on the fluorescence emission of products. Products coming from cyclohexanone have stronger fluorescence emission than those from cyclopentanone. Copyrigh