An efficient and practical procedure for the synthesis of 4-substituted coumarins
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.
De, Surya K.,Gibbs, Richard A.
p. 1231 - 1233
(2007/10/03)
New synthesis of pyrrolo[3,2,1-ij]quinolin-4-one derivatives
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Chilin,Rodighiero,Pastorini,Guiotto
p. 980 - 983
(2007/10/02)
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