4-{3,5-Bis[2,3,5,6-tetrafluoro-4-(piperazin-1-yl)phenyl]-4,5-dihydro-1H-pyrazol-1-yl}benzaldehyde in the Synthesis of New Dendritic Chromophores

被引：0

作者：

Ishchenko, R. A. ^{[1
,2
]}

Orlova, N. A. ^{[1
]}

Shelkovnikov, V. V. ^{[1
,3
]}

Maksimov, A. M. ^{[1
]}

Ryazanov, N. D. ^{[1
,2
]}

Berezhnaya, V. N. ^{[1
,2
]}

Chernonosov, A. A. ^{[4
]}

机构：

[1] Russian Acad Sci, Siberian Branch, Vorozhtsov Novosibirsk Inst Organ Chem, Novosibirsk 630090, Russia

[2] Novosibirsk Natl Res State Univ, Novosibirsk 630090, Russia

[3] Novosibirsk State Tech Univ, Novosibirsk 630073, Russia

[4] Russian Acad Sci, Inst Chem Biol & Fundamental Med, Siberian Branch, Novosibirsk 630090, Russia

来源：

RUSSIAN JOURNAL OF ORGANIC CHEMISTRY | 2025年 / 61卷 / 01期

关键词：

polyfluorotriphenylpyrazolines; dicyanoisophorone; Boc-piperazine; dipolar chromophores; branched structures; DONOR BLOCKS; DERIVATIVES; PIPERAZINE; POLYMERS; DYES;

D O I：

10.1134/S1070428024604722

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The reaction of 4-[3,5-bis(2,3,5,6-tetrafluorophenyl)-4,5-dihydro-1H-pyrazol-1-yl]benzaldehyde with tert-butyl piperazine-1-carboxylate gave Boc-protected 4-{3,5-bis[2,3,5,6-tetrafluoro-4-(piperazin-1-yl)-phenyl]-4,5-dihydro-1H-pyrazol-1-yl}benzaldehyde. The latter reacted as a donor block with dicyanoisophorone as an acceptor block in butan-1-ol in the presence of morpholine to produce a dipolar dye with Boc-protected piperazine fragments. After removal of the Boc protection by the action of HCl, the resulting bis-piperazinium dihydrochloride was acylated with benzoyl chloride and its branched derivatives to afford new dipolar chromophores.

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页码：184 / 189

页数：6

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