49545-72-4Relevant academic research and scientific papers
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, characterization and spectroscopic behavior of novel 2-oxo-1,4-disubstituted-1,2,5,6-tetrahydrobenzo[h]quinoline-3-carbonitrile dyes
Khan, Salman A.,Asiri, Abdullah M.,Al-Thaqafy, Saad H.,Faidallah, Hassan M.,El-Daly, Samy A.
, p. 141 - 148 (2014/07/07)
Two synthetic pathways were adopted to synthesize the target 2-oxo-1,4-disubstituted-1,2,5,6-tetrahydro-benzo[h]quinoline-3-carbonitriles. Structure of the synthesized compounds has been characterized based on FT-IR, 1H NMR, 13C NMR
Use of Functionalised Ynamines in a Hetero-Diels-Alder Approach to Dihydronaphtholpyrans and Indenopyrans
Bloxham, Jason,Dell, Colin P.
, p. 3055 - 3060 (2007/10/02)
Reaction of the ynamine ester methyl 3-(pyrrolidin-1-yl)prop-2-ynoate 5 with 2-(4-nitrobenzylidene)-1-tetralone 1 results in a very poor yield of the chromatographically labile 4-aryl-5,6-dihydro-4H-naphtholpyran 8 along with the α-pyrone 10.Increa
Fused Heterocycles: Part III - Attempted Synthesis of 4,5-Dihydro-3-arylnaphthisoxazoles
Rao, C. Janakiram,Reddy, K. Malla,Murthy, A. Krishna
, p. 282 - 284 (2007/10/02)
2-Benzal-1-tetralone dibromide (II), obtained by the bromination of 2-benzal-1-tetralone, on treatment with hydroxylamine hydrochloride in the presence of alc.KOH undergoes cyclization to the unexpected product 3,3a,4,5-tetrahydro-3-arylnaphthisoxa
