Synthetic Communications p. 668 - 680 (2013)
Update date:2022-08-03
Topics:
Nagarajan, Sangaraiah
Shanmugavelan, Poovan
Sathishkumar, Murugan
Priyadharshini, Namachivayam
Sudakar, Padmanaban
Ponnuswamy, Alagusundaram
Solvent-free rapid coupling of monothiocarboxylic acid with azide affords carboxamide chemoselectively. Triphenyl phosphine included as an additive influences the chemoselectivity, yielding carboxamide and thioamide. Similar variation in the chemoselectivity is observed in the absence and presence of triphenyl phosphine in solution-phase methodology. Rapidity and ecofriendliness of the solvent-free approach to yield the products in just 15min is noteworthy compared to the solution-phase protocol, which has a long reaction time (1-3 days).
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