36695-19-9Relevant articles and documents
An efficient and practical procedure for the synthesis of 4-substituted coumarins
De, Surya K.,Gibbs, Richard A.
, p. 1231 - 1233 (2005)
BiCl3 is used as an efficient catalyst in the Pechmann condensation reaction of phenols with β-keto esters leading to the formation of coumarin derivatives in excellent yields under solvent-free conditions. Georg Thieme Verlag Stuttgart.
Poly(4-vinylpyridine)-supported sulfuric acid: An efficient solid acid catalyst for the synthesis of coumarin derivatives under solvent-free conditions
Borah, Kalyan Jyoti,Borah, Ruli
experimental part, p. 1253 - 1257 (2012/06/01)
Poly(4-vinylpyridine)-supported sulfuric acid is an efficient catalyst for the Pechmann condensation of acetoacetic esters with phenols, leading to the formation of coumarins in good yields within a few minutes under solvent-free microwave conditions. The catalyst used can be recovered and reused after activation. Springer-Verlag 2011.
Synthesis of novel α-pyranochalcones and pyrazoline derivatives as Plasmodium falciparum growth inhibitors
Wanare, Gajanan,Aher, Rahul,Kawathekar, Neha,Ranjan, Ravi,Kaushik, Naveen Kumar,Sahal, Dinkar
supporting information; experimental part, p. 4675 - 4678 (2010/10/02)
Both the lack of a credible malaria vaccine and the emergence and spread of parasites resistant to most of the clinically used antimalarial drugs and drug combination have aroused an imperative need to develop new drugs against malaria. In present work, α
The indium(III) chloride-catalyzed von Pechmann reaction: A simple and effective procedure for the synthesis of 4-substituted coumarins
Subhas Bose,Rudradas,Hari Babu, Mereyala
, p. 9195 - 9197 (2007/10/03)
Indium(III) chloride is used as an efficient catalyst in the von Pechmann condensation of phenols with β-ketoesters leading to the formation of coumarin derivatives in excellent yields with good purity.
Pechmann reaction in chloroaluminate ionic liquid
Khandekar,Khadilkar
, p. 152 - 154 (2007/10/03)
Substituted coumarins were synthesized in good yields via the Pechmann reaction in chloroaluminate ionic liquid. 1-Butylpyridinium chloroaluminate ionic liquid was used as a solvent cum catalyst for this condensation reaction.
Coumarin syntheses via Pechmann condensation in Lewis acidic chloroaluminate ionic liquid
Potdar, Mahesh K.,Mohile, Swapnil S.,Salunkhe, Manikrao M.
, p. 9285 - 9287 (2007/10/03)
1-Butyl-3-methylimidazolium chloroaluminate, [bmim]Cl·2AlCl3 ionic liquid is used as an alternative to conventional acid catalysts in the Pechmann condensation of phenols with ethyl acetoacetate leading to the formation of coumarin derivatives. The reaction time is reduced drastically even at ambient conditions. The ionic liquid plays the dual role of solvent and Lewis acid catalyst providing a quick and efficient route to the syntheses of coumarins.