Premium
An ultrasound assisted cyclocondensation reaction for the efficient synthesis of [1]benzopyranopyrido[ d ]pyrimidines using porous graphene/MoO 3
Author(s) -
Abdolmohammadi Shahrzad,
Afsharpour Maryam
Publication year - 2021
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.6028
Subject(s) - sonication , graphene , chemistry , scanning electron microscope , raman spectroscopy , porosity , fourier transform infrared spectroscopy , nanocomposite , catalysis , elemental analysis , spectroscopy , nuclear chemistry , chemical engineering , analytical chemistry (journal) , organic chemistry , materials science , composite material , chromatography , engineering , quantum mechanics , physics , optics
In this paper, we report a feasible protocol for the preparation of [1]benzopyranopyrido[ d ]pyrimidines via expeditious sonochemical route. The reaction efficiency was evaluated by influence of several parameters including sonication power, sonication time, different solvents, and using porous graphene/MoO 3 nanocomposite as catalyst, for the first time. The effect of the ultrasonication comparing with the conventional heating on the synthesis of the titled compounds shows that the ultrasonic irradiation is required to rich the cyclized products. The structural properties of porous graphene/MoO 3 nanocomposite were determined by Fourier transform infrared spectroscopy (FT‐IR), powder X‐ray diffractometry (XRD), scanning electron microscope (SEM), Raman spectroscopy, and also by TGA analysis. Confirmation of the structures of compounds 4a – 4h were also established with IR, 1 H NMR, and 13 C NMR spectroscopic data and also by elemental analyses.