359779-36-5

Upstream product

• 28144-70-9 anthranilic acid amide 
• 642-31-9 9-anthracene aldehyde 

Relevant academic research and scientific papers

Anthracene Based AIE Active Probe for Colorimetric and Fluorimetric Detection of Cu2+ Ions

A novel aggregation induced emission (AIE) active anthracene based dihydroquinazolinone derivative (probe 1) has been synthesized and characterized by means of spectroscopic methods. The photophysical properties of this probe have been investigated in solvents of different polarity display that fluorescence states are of intramolecular charge transfer (ICT) character. Probe 1 show clear AIE behavior in water/THF mixture on reaching water fraction 95%. The AIE behavior of probe 1 have been exploited for the detection of metal ions in aqueous solution which reveals high selectivity and sensitivity towards Cu2+ ions by colorimetrically and function as a chemosensor in a remarkable turn-off fluorescence manner. Further, the experimental results were investigated by computational means by optimizing the ground state geometries of probe 1 and probe 1-Cu complex using density functional theory (DFT) at B3LYP/6-31G and B3LYP/6-31G (LANL2DZ) levels of theory. Intra-molecular charge transfer was observed in probe 1 while ligand to metal charge transfer (LMCT) for probe 1-Cu complex.

Amino acid catalyzed synthesis of 2,3-dihydroquinazolin-4(1H)-one derivatives

A simple, convenient and facile approach for the synthesis of a series of 2,3-dihydroquinazolin-4(1H)-ones in an environmentally benign method has been developed. This method involves a direct cyclocondensation of 2-aminobenzamide with aromatic aldehydes and ketones using aspartic acid as a catalyst in water.

BF3-grafted Fe3O4@Sucrose nanoparticles as a highly-efficient acid catalyst for syntheses of Dihydroquinazolinones (DHQZs) and Bis 3-Indolyl Methanes (BIMs)

Current paper represents immobilization of sucrose on the Fe3O4 core and grafting of boron trifluoride (BF3) onto the new surface. The catalytic activity of these nanoparticles was tested in syntheses of Dihydroquinazolinones (DHQZs) and Bis (3-Indolyl) Methanes (BIMs) as two fruitful pharmaceutical structures. Acidic capacity, FT-IR, XRD, VSM, TGA and SEM–EDX tests are carried out on such novel nanoparticles (NPs). Catalyst has shown more acidic capacity per one gram of NPs than sulfonated homologue which was reported previously.

Recyclable [Ce(l -Pro) 2 ] 2 (Oxa) used as Heterogeneous Catalyst: One-Pot Synthesis of 2,3-Dihydroquinazolin-4(1 H)-ones in Ethanol

[Ce(l -Pro) 2 ] 2 (Oxa) was used as a recyclable heterogeneous catalyst under mild conditions for the preparation of 2-aryl-2,3-dihydroquinazolin-4(1 H)-one derivatives. The one-pot protocol proceeds in ethanol using anthranilamide with several aldehydes at 50-55 °C. The catalyst can be recycled and reused three cycles without significant loss of catalytic activity.

A concise aqueous phase supramolecular synthesis of 2-phenyl-2,3- dihydroquinazolin-4(1H)-one derivatives

2-Phenyl-2,3-dihydroquinazolin-4(1H)-one derivatives were synthesized for the first time in water under neutral conditions by the reaction of aldehyde, and anthranilamide mediated by β-cyclodextrin in high yields. β-Cyclodextrin can be recovered and reused with a small loss of catalytic activity.