Tetrahedron

Urea-tetrahydrobenzoxanthene receptors for carboxylic acids

AI Oliva, L Simón, FM Muñiz, F Sanz, JR Morán

Index: Tetrahedron, , vol. 60, # 17 p. 3755 - 3762

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Citation Number: 12

Abstract

... Tetrahedron. Volume 60, Issue 17, 19 April 2004, Pages 3755–3762. ... Fuming nitric acid (3 ml) in acetic anhydride (60 ml) was then added dropwise, keeping the reaction mixture below −5 °C. Once nitration is finished, the reaction mixture was poured over ice water (1000 ml). ...