CHEMISTRY OF ENOL ETHERS. LX. AMINOFORMYLATION OF CYCLIC 1-ALKOXY-1,3-DIENES. SYNTHESIS OF PENTAMETHINE SALTS AND TRICARBOCYANINES WITH CYCLIC FRAGMENTS IN THE CONJUGATION CHAIN
The aminoformylation of cyclic 1-alkoxy-1,3-dienes by the Vilsmeier complex obtained from dimethylformamide and phosphorus oxychloride was investigated.The salts of the dianils of glutaconaldehyde derivatives with six-membered rings in the conjugation chain were synthesized by treatment of the reaction products with aniline in an acidic medium.They were used for the production of the corresponding tricarbocyanine dyes.
Makin, S. M.,Pomogaev, A. I.
p. 1918 - 1920
(2007/10/02)
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