53019-70-8Relevant academic research and scientific papers
CHEMISTRY OF ENOL ETHERS. LXXIX. REACTION OF GLUTACONALDEHYDE ACETALS AND THEIR DERIVATIVES WITH HETEROCYCLIC COMPOUNDS. THE SYNTHESIS OF TRICARBOCYANINE DYES
Makin, S. M.,Kruglikova, R. I.,Shavrygina, O. A.,Kolobova, T. P.,Popova, T. P.,Tagirov, T. K.
, p. 1850 - 1852 (2007/10/02)
The acetal forms of glutaconaldehyde (2,6-dialkoxypyrans, 1,1,5,5-tetralkoxy-2-pentenes, 5,5-dialkoxy-2-pentenals, and 1,3,5,5-tetraalkoxy-1-pentenes) are capable of reacting with the quaternary salts of heterocyclic bases containing an active methyl group in acetic anhydride solution and in the presence of triethylamine with the formation of tricarbocyanine dyes.Syntheses are reported of unsubstituted thio-, indo-, and quinotricarbocyanines and derivatives with various substituents in the polymethine chain.
