81501-98-6

Upstream product

• 17356-08-0 thiourea 
• 897-78-9 2,6-bis(phenylmethylene)cyclohexanone 
• 100-52-7 benzaldehyde 
• 108-94-1 cyclohexanone 
• 897-78-9 2,6-bis(benzylidene)cyclohexanone 

Downstream Products

• 81502-24-1 3-imino-5-phenyl-9-benzylidene-2,3,6,7,8,9-hexahydro-5H-thiazolo<2,3-b>quinazoline 
• 81508-73-8 5-phenyl-9-benzylidene-2,3,6,7,8,9-hexahydro-5H-thiazolo-<2,3,-b>quinazolin-3-one 
• 81508-72-7 5-phenyl-9-benzylidene-2,3,6,7,8,9-hexahydro-5H-thiazolo-<2,3-b>quinazoline 
• 67534-01-4 2-methyl-5-phenyl-9-benzylidene-2,3,6,7,8,9-hexahydro-5H-thiazolo-<2,3,-b>quinazolin-3-one 
• 81502-01-4 6-phenyl-10-benzylidene-3,4,7,8,9,10-hexahydro-2H,6H-1,3-thiazino<2,3-b>quinazoline 
• 81502-22-9 4-phenyl-8-benzylidene-3,4,5,6,7,8-hexahydroquinazoline-2-mercaptopropionic acid 
• 81502-20-7 ethyl (4-phenyl-8-benzylidene-3,4,5,6,7,8-hexahydro-quinazoline-2-mercaptopropionate) 
• 82077-51-8 2-pentylmercapto-4-phenyl-8-benzylidene-3,4,5,6,7,8-hexahydroquinazoline hydrobromide 
• 82106-49-8 2-hexylmercapto-4-phenyl-8-benzylidene-3,4,5,6,7,8-hexahydroquinazoline hydrobromide 
• 81502-03-6 2,9-dibenzylidene-5-phenyl-2,3,6,7,8,9-hexahydro-5H-thiazolo<2,3-b>quinazolin-3-one 
• 81502-23-0 6-phenyl-10-benzylidene-3,4,7,8,9,10-hexahydro-2H,6H-1,3-thiazino<2,3-b>quinazolin-4-one 
• 82077-63-2 2-hexylmercapto-4-phenyl-8-E-benzylidene-5,6,7,8-tetrahydroquinazolin 
• 82077-62-1 2-pentylmercapto-4-phenyl-8-E-benzylidene-5,6,7,8-tetrahydroquinazolin 
• 81502-21-8 3-{4-Phenyl-8-[1-phenyl-meth-(E)-ylidene]-3,4,5,6,7,8-hexahydro-quinazolin-2-ylsulfanyl}-propionic acid ethyl ester; compound with picric acid 

Relevant academic research and scientific papers

Synthesis of thiazolylidenethiazoloquinazolinone hybrids from monocarbonyl curcumin analogues. Characterization, bio-evaluation and DFT study

Given the diverse pharmacological attributes possessed by the curcumin and its analogs, quinazolinethione 3, thiazoloquinazolinone 4, and thiazolylidene thiazoloquinazolinone hybrids D1-D12 were synthesized from α, α’ Bis(arylidene)Cyclohexanone (BAC) as starting material. The proposed structures of all synthesized compounds were confirmed by 1H, 13CNMR, and elemental analysis. The newly synthesized hybrids were screened in vitro for their antimicrobial and antioxidant activities. Preliminary studies showed that compounds D4, D5, D10, D11, and D12 exhibited superior inhibitory behaviors against some microorganisms in comparison with standard drugs. In addition, DPPH radical scavenging assay was used to evaluate their antioxidant property. Accordingly, compound D11 was found to be a more powerful antioxidant than the other compounds. Furthermore, the HOMO–LUMO energy values and some chemical parameters indicate that the synthesized hybrid D11 is more reactive than D7. These results were consistent with our experimental data on antioxidants. Moreover, molecular electrostatic potential (MEP) maps were computed in order to predict the reactive sites for nucleophilic and electrophilic attacks of the synthesized hybrids D7 and D11.

Base-catalysed cyclocondensation of α,α′- bis(arylmethylene)cyclohexanones with thiourea: Formation of E-8-(arylmethylene)-4-aryl-1,2,3,4,5,6,7,8-octahydrobenzo[d]pyrimidine-2-thiones

Base-catalysed cyclocondensation of α,α′- bis(arylmethylene)cyclohexanones with thiourea has been found to generate E-8-(arylmethylene)-4-aryl-1,2,3,4,5,6,7,8-octahydrobenzo[d]pyrimidine-2- thiones in high yield, the structures of which have been established from their spectral data. However, corresponding cyclopentanones were found to be unreactive under similar reaction condition.