Solvent-free synthesis of sulfonephthaleins, sulfonefluoresceins and fluoresceins under microwave irradiation

S Cihelník, I Stibor, P Lhoták

Index: Collection of Czechoslovak Chemical Communications, , vol. 67, # 12 p. 1779 - 1789

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Citation Number: 8

Abstract

... Chemical shifts are given in ppm (δ-scale), coupling constants (J) in Hz. ... The suspen- sion was boiled for a while, then hot-filtered, washed with hot water, collected and dried to yield 1.3 g (70% ) of 9. The sulfonefluorescein could not be analysed by combustion due to ... Collect. ...

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