In this study, two novel chiral quinazoline-thiosemicarbazone compounds (10a and 10b) were synthesized from (L)-valine via a multistep route involving hydroxyl protection, chlorination, hydrazination, isothiocyanate addition, and TBDMS deprotection. Structures were confirmed by ¹H-NMR, ¹³C-NMR, and IR spectroscopy. Pho...
A simple, one-pot method for the synthesis of seven novel dihydrothiazole-hydrazone compounds is presented, employing a condensation-cyclization protocol, with the products characterized by FTIR, 1H NMR, 13C NMR, and ESI-MS. Thiazoles and hydrazones are distinguished by versatile chelating properties and fluorescent co...
Charan D. C., Y. M., Nitinkumar S. Shetty· Journal of Fluorescence· 0 citations
The synthesis of chromenonitriles remains largely underexplored, primarily due to the limited availability of suitable substrates and the generally unsatisfactory yields of existing methods. Herein, we report a new method that enables the efficient construction of chromenonitriles under mild, metal-free conditions, usi...
Sheng-Yu Li, Zhong-Hao Li, Chu-Ming Pang et al.· Organic and biomolecular che...· 0 citations
Polyazomethines are π-conjugated Schiff-base polymers whose azomethine nitrogen atoms provide coordination sites for metal ions and thereby offer a convenient route to multifunctional materials. In the present study, four aromatic polyazomethines were synthesized by condensation of p-phthalaldehyde with 4,4′-diaminodip...
Sadiq ur Rahman, Shah Wali Khan, F. Fazal et al.· International Journal of Sci...· 0 citations
In order to improve the solubility and dielectric properties of maleimide resin, polymaleimide (PMI) was prepared from maleic anhydride and polyarylamine containing biphenyl group (PBPPA), which was synthesized from 4,4′‐bis(chloromethyl)‐1,1′‐biphenyl and aniline. The chemical structure and molecule weight of PBPP...
Yi-Qing Xia, Ren-Fei Zhang, Yu-Ping Sheng et al.· Journal of Applied Polymer S...· 0 citations
This study describes the synthesis, photophysical characterization, and bioimaging properties of a series of chalcones derived from apocynin, functionalized with electroactive groups such as phenyldimethylamine (1), triphenylamine (2), tetraphenylethylene (3), and pyrene (4). These molecules featured donor−π–acceptor...
Camila García-Aquite, L. Illicachi, Joel José Montalvo-Acosta et al.· ACS Omega· 0 citations
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