Journal of Heterocyclic Chemistry

Syntheses of fluorescent dyes. IX. New 4??hydroxycoumarins, 4??hydroxy??2??quinolones, 2H, 5H??Pyrano [3, 2??c] benzopyran??2, 5??diones and 2H, 5H??Pyrano [3, 2??c] …

A Knierzinger, OS Wolfbeis

Index: Journal of Heterocyclic Chemistry, , vol. 17, # 2 p. 225 - 229

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Citation Number: 49

Abstract

... and ethyl 3-oxobutyrate), whose max- ima are sharply shifted to the blue as compared with compounds 21-r. /. Heterocyclic Chem., 17 ... 226 A. Knierzinger and 0. S. Wolfbeis Vol. ... OH Benzimidazol-2-yl 0 > 350 60 can.o, 65.90 2.91 8.09 DMF 346.30 66.22 2.92 7.94 532(b) j OH ...