Kinetic and Mechanistic Investigation of Pyrano[2,3-d]pyrimidine Formation in the Presence of Catalyst under Novel One-Pot Three-Component Reaction
Figure 1
(a) The UV-vis spectra of the reaction between 4-nitrobenzaldehyde 2 (10−2 M), malononitrile 3 (10−2 M), and thiobarbituric acid 1 (10−2 M) in the presence of sodium acetate as a catalyst in methanol as reaction proceeds into a 10 mm light-path cell. Herein, the upward direction of the arrow indicates the progress of product versus times. (b) The UV spectrum of the final product.
