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⵵/ȣ 1997 / ȣ: V.9,no.1,Feb
1() 1,4-Diketopyrrolo-(3,4c)pyrrole ȷ ռ ü ռ
2(Ÿ) Synthesis of weather fast 1,4-Diketo-pyrrolo(3,4c)-pyrrole and its derivatives
() Song, Hanchul (Dept of dyeing and finishing, Kyungpook National University, Taegu, Korea) Lee, Soojong (Dept of dyeing and finishing, Kyungpook National University, Taegu, Korea)
(Ÿ) Song, Hanchul (Dept of dyeing and finishing, Kyungpook National University, Taegu, Korea) Lee, Soojong (Dept of dyeing and finishing, Kyungpook National University, Taegu, Korea)
Ҽ() Song, Hanchul (Dept of dyeing and finishing, Kyungpook National University, Taegu, Korea) Lee, Soojo
Ҽ(Ÿ) Song, Hanchul (Dept of dyeing and finishing, Kyungpook National University, Taegu, Korea) Lee, Soojo
/ 44 ~ 49 : 6
() Korean
ʷ Recent investigation and developments of A. Iqbal on diketo-pyrrolo-pyrrole (DPP) pigments has prompted us to synthesize and close observation of a few properties of these molecules. Described are synthesis, via 1-phenyl-2-ethoxycarbonyl-5-pyrrolinone intermediate, of asymmetric derivatives such as 1,4-Diketo-3-(4-chlorophenyl)-6-phenyl-pyrrolo-(3,4c)-pyrrole (4), 1,4-Diketo-3-(4-bromophenyl)-6-phenybpyrrolo-(3,4c)-pyrrole (5), 1,4-Diketo-3-(3-cyanophenyl)-6-phenyl-pyrrolo-(3,4c)-pyrrole (6), 1,4-Diketo-3-(4-cyanophenyl)-6-phenyl-pyrrolo-(3,4c)-pyrrole (7), 1,4-Diketo-3-(4-pyridyl)-6-phenyt-pyrrolo-(3,4c)-pyrrole (8), 1,4-Diketo-3-(3-pyridyl)-6-phenyl-pyrrolo-(3,4c)-pyrrole (9), 1,4-Diketo-3-(2-pyridyl)-6-phenyl-pyrrolo-(3,4c)-pyrrole (10), 1,4-Diketo-3-(-naphthyl)-6-phenyl-pyrrolo-(3,4c)-pyrrole (11), and UV-Vis absorption spectrum of the above compounds. Results from calculation of their absorption maxima using PISYSTEM are also described.
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