Kinetic and Mechanistic Investigation of Pyrano[2,3-d]pyrimidine Formation in the Presence of Catalyst under Novel One-Pot Three-Component Reaction

Table 1

Entry	Substrate	1,3-Dicabonyl	Product	Time (min)	Yield (%)^a	M.P observed (°C)	M.P reported (°C)
1	4-NO2C6H4	3	4	14	98	234–236	235-236 [5]

aYields refer to the pure isolated products.