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Chemistry of enol ethers. LXXX. Derivatives of heptadienedial in the synthesis of tetracarbocyanine dyes

Journal Article · · J. Org. Chem. USSR (Engl. Transl.); (United States)
OSTI ID:6007984

When the alkoxyacetals of C/sub 7/-dialdehydes are heated with the quaternary salts of heterocyclic bases (the iodides of 2-methyl-3-ethylbenzothiazole, 1,2,3,3-tetramethylindolenine, 1,2,3,3-tetramethyl-4,5-benzindolenine, 2-methyl-1-ethyl-quinoline) in acetic acid solution in the presence of triethylamino, the corresponding tetracarbocyanine dyes are formed with good yields.

Research Organization:
M.V. Lomonosov Moscow Institute of Fine Chemical Technology (USSR)
OSTI ID:
6007984
Journal Information:
J. Org. Chem. USSR (Engl. Transl.); (United States), Journal Name: J. Org. Chem. USSR (Engl. Transl.); (United States) Vol. 23:12; ISSN JOCYA
Country of Publication:
United States
Language:
English