@article {49048,
	title = {I2-catalyzed three-component synthesis of 3-selenylated pyrazolo[1,5-a]pyrimidines},
	journal = {New Journal of Chemistry},
	volume = {48},
	year = {2024},
	month = {MAY },
	pages = {9480-9485},
	type = {Article},
	abstract = {<p>
	A straightforward protocol has been developed to access 3-selenylated pyrazolo[1,5-a]pyrimidines from readily available amino pyrazoles, chalcones, and diaryl/dialkyl diselenides. This I-2-catalyzed methodology is highly useful for synthesizing a wide range of functionalized 3-(aryl/alkylselanyl)pyrazolo[1,5-a]pyrimidine derivatives. Mechanistic investigation disclosed that iodine catalysis is very important in both the cyclization process as well as in the C-H selenylation step. Moreover, the developed reaction conditions are also applicable for the cyclization of amino pyrazole with enaminone followed by C-H selenylation in one pot. The use of simple reagents and catalyst, wide substrate scope, mild and metal-free reaction conditions, and practical applicability are the attractive facets of this approach.</p>
},
	issn = {1144-0546},
	doi = {10.1039/d3nj05847f},
	author = {Choudhuri, Tathagata and Paul, Suvam and Sikdar, Papiya and Das, Sourav and Sawant, Sanghapal D. and Bagdi, Avik Kumar}
}
@article {49873,
	title = {Divergent synthesis of 3-formylpyrazolo[1,5-a]pyrimidines and methylene-bridged bis(pyrazolo[1,5-a]pyrimidines) using DMSO as a single carbon synthon},
	journal = {Organic \& Biomolecular Chemistry},
	volume = {23},
	year = {2025},
	month = {AUG },
	pages = {7566-7570},
	type = {Article},
	abstract = {<p>
	A divergent approach has been explored for synthesizing 3-formylpyrazolo[1,5-a]pyrimidines and methylene-bridged bis(pyrazolo[1,5-a]pyrimidines) using DMSO as a C1 synthon. A library of 3-formylpyrazolo[1,5-a]pyrimidines and methylene-bridged bis(pyrazolo[1,5-a]pyrimidines) has been synthesized using CuOAc and AcOH, respectively. The reaction progressed through a radical pathway. The usefulness of 3-formylpyrazolo[1,5-a]pyrimidines in synthesizing a zaleplon derivative has been demonstrated.</p>
},
	issn = {1477-0520},
	doi = {10.1039/d5ob01042j},
	author = {Sikdar, Papiya and Das, Sourav and Saini, Sheetal and Sawant, Sanghapal D. and Bagdi, Avik Kumar}
}
