Nickel boride mediated reductive desulfurization of 2‐thioxo‐4(3H)‐quinazolinones: A new synthesis of quinazolin‐4(3H)‐ones and 2,3‐dihydro‐4(1H)‐quinazolinones

A novel one-pot approach for the synthesis of aryl substituted quinazolin-4(3H)-ones and 2,3-dihydro-4(1H)-quinazolinones has been reported based on the reductive desulfurization of 3-aryl-2-thioxo-4(3H)-quinazolinones with nickel boride in dry methanol at ambient temperature.

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