Solvatochromic fluorescent 2-substituted 3-ethynyl quinoxalines: Four-component synthesis, photophysical properties, and electronic structure

CF Gers, J Nordmann, C Kumru, W Frank…

Index: Ames, Donald E.; Brohi, M. Ismail Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1980 , p. 1384 - 1389

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Citation Number: 25

Abstract

... E-mail: thomasjj.mueller@uni-duesseldorf.de. ... Ames et al. ... Table 1. Optimization Study for the Synthesis of Ynedione 3a. glyoxylation, coupling, entry a, c 0 (1a) (M), solvent, T (°C), t 1 (h), c 0 (2a) (M), t 2 (h), ynedione 3a b (%). 1, 0.2, THF, rt, 4, 0.2, 24, 64. 2, 0.2, THF, 50, 1, 0.2, 6, 63 ...