Transition-metal free direct C–H functionalization of quinoxalin-2(1H)-ones with oxamic acids leading to 3-carbamoyl quinoxalin-2(1H)-ones
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DOI: 10.1039/c9qo01322a
Abstract: A practical transition-metal free decarboxylative coupling reaction of oxamic acids with quinoxalin-2(1H)-ones has been developed under mild conditions. This transformation provides an efficient approach for the preparation of 3-carbamoyl quinoxalin-2(1H)-ones, which are important subunits in… read more here.
Keywords: transition metal; chemistry; oxamic acids; quinoxalin ones ... See more keywords
Photocatalyzed decarboxylation of oxamic acids under near-infrared conditions.
Sign Up to like & getrecommendations! Published in 2022 at "Chemical communications"
DOI: 10.1039/d2cc03155h
Abstract: Photocatalyzed oxidative decarboxylation of oxamic acids under near-infrared irradiation using Os(bptpy)2(PF6)2 as catalyst is reported. The reaction was applied to the synthesis of urethanes and heterocyclic amides. Mechanistic studies and comparative penetration depths between the… read more here.
Keywords: decarboxylation oxamic; oxamic acids; acids near; near infrared ... See more keywords