@article {47898,
	title = {Diethyl phosphite-mediated switchable synthesis of bis(imidazoheterocycles) derived disulfanes and sulfanes using imidazoheterocycles and octasulfur},
	journal = {New Journal of Chemistry},
	volume = {46},
	year = {2022},
	month = {MAR },
	pages = {4784-4791},
	type = {Article},
	abstract = {<p>
	A practical and highly efficient oxidative dual C-H sulfenylation of imidazoheterocycles using odorless, inexpensive elemental sulfur in DMSO to synthesize sulfur-bridged imidazoheterocycles under metal-free conditions is reported. The amount of diethyl phosphite and sulfur powder most attractively permits a tunable synthesis of bis(imidazoheterocycle)disulfanes and bis(imidazoheterocycle)sulfanes in good to high yields. A comprehensive substrate scope with a broad range of functional group tolerance was realized, and the efficacy of the process was proved at gram-scale reactions. Next, the bis(imidazopyridine)disulfanes were smoothly reacted with various indoles under similar conditions to form the corresponding imidazo[1,2-a]pyridine-indole-derived thioethers in high yields. A plausible mechanism has been proposed based on the control experiments.</p>
},
	issn = {1144-0546},
	doi = {10.1039/d1nj05226h},
	author = {Reddy, Raju Jannapu and Shankar, Angothu and Kumar, Jangam Jagadesh and Sharadha, Nunavath and Krishna, Gamidi Rama}
}
