An article Synthesis and luminescent properties of new naphthoquinoline lactone derivatives WOS:000573561300006 published article about MOLECULAR-ORBITAL METHODS; BASIS-SET; FLUORESCENT; SUBSTITUENTS; MONOMER in [Santos, Fernanda Amorim; Tondato, Wellington Negri; de Laurentiz, Rosangela da Silva] Univ Estadual Paulista, Dept Fis & Quim, UNESP, BR-15385000 Ilha Solteira, SP, Brazil; [Tame Parreira, Renato Luis; Orenha, Renato Pereira; Leite Lourenco, Luiz Carlos] Univ Franca, Nucleo Pesquisas Ciencias Exatas & Tecnol, Franca, SP, Brazil in 2020.0, Cited 43.0. Quality Control of 3-Hydroxybenzaldehyde. The Name is 3-Hydroxybenzaldehyde. Through research, I have a further understanding and discovery of 100-83-4
The multicomponent reaction between tetronic acid (1), 2-aminoanthracene (2) and aromatic aldehydes (3) and the subsequent addition of DDQ produced a series of naphtho [2,3-f]quinoline lactone derivatives (5) in good yield. UV-Vis and fluorescence spectra of these derivatives are described. The optical absorption and emission properties of the compounds were studied in different solvents and pH. The results show that the naphthoquinoline derivatives have emission bands of 453-517 nm and one of them, compound 5d, had an unexpected bathochromic shift (597 nm) caused by an excited-state intramolecular proton transfer (ESIPT). The luminescent properties of 5d in different solvents and pH, although preliminary, indicate the potential use of this compound as a chemical sensor.
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Reference:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
,Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles