We started our study of the three-component Biginelli condensation using TPP as the catalyst (Scheme 1), by examining the conditions for the reaction using 2-thiophenecarboxaldehyde, ethyl acetoacetate and urea to afford the corresponding DHPM product
We started our study of the three-component Biginelli condensationusing TPP as the catalyst (Scheme 1), by examining the conditionsfor the reaction using 2-thiophenecarboxaldehyde, ethylacetoacetate and urea to afford the corresponding DHPM product