Simple and Efficient One Step Synthesis of Functionalized Flavanones and Chalcones
作者:ABDULLAH SAAD ALBOGAMI、USAMA KARAMA、AHMED AMINE MOUSA、M. KHAN、SARA ABDULLAH AL-MAZROA、HAMAD Z. ALKHATHLAN
DOI:10.13005/ojc/280201
日期:2012.6.18
A facile and highly efficient microwave-assisted synthesis of functionalizedchalcones and flavanones based on the Claisen-Schmidt condensation reaction is reported. The method describes the synthesis of flavanones in single step with excellent yield and it was revealed that position and number of substituents on acetophenones and aromatic aldehydes played a very crucial and key role in the construction
Absorption and Fluorescent Studies of 3-Hydroxychromones
作者:Radhika Khanna、Ramesh Kumar、Aarti Dalal、Ramesh C. Kamboj
DOI:10.1007/s10895-015-1623-0
日期:2015.9
The synthesis and spectral studies of variously substituted 3-hydroxychromones have been carried out. A key relationship between the structural motif of synthesized 3-hydroxychromones (3-HCs) and their fluorescent properties was found. The chromones substituted with electron-donating group at 4′-position expressed the red shift of the N* and T* band and also exhibited the increased fluorescent intensity ratio while the chromones with electron-withdrawing group showed the blue shift of the N* and T* band. Therefore, these 3-HCs may behave as the possible fluorescent probes.