Highlights
Structurally functionalized 1,2,4-triazoloquinazolinone and some pyrimidine derivatives were synthesized by agar-entrapped sulfonated DABCO as a non-metal catalyst.
The moisture-resistant property of the catalyst were investigated.
A simple purification step was performed to achieve high purity.
The reusability of the catalyst was investigated during three runs for all compounds.
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