Research Article

H-ZSM-5 Zeolite Synthesis by Sourcing Silica from the Wheat Husk Ash: Characterization and Application as a Versatile Heterogeneous Catalyst in Organic Transformations including Some Multicomponent Reactions

Figure 7

(a) Normal view and (b) the expanded view of 1H NMR spectrum of 2,3-diphenylquinoxaline.
(a)
(b)