Phase Transfer Catalysis for Tandem Alkylation of Azo Dyes for the Synthesis of Novel Multifunctional Molecules

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• 作者：Li ; Xiang ; Mintz ; Eric A. ; Bu ; Xiu R. ; Zehnder ; Oliver ; Bosshard ; Christian ; Gü ; nter ; Peter
• 关键词：phase transfer ; alkylation ; azo compounds ; polycyclic heterocyclic compounds
• 刊名：Tetrahedron
• 出版年：2000
• 出版时间：August 4, 2000
• 年：2000
• 卷：56
• 期：32
• 页码：5785-5791
• 全文大小：117 K

文摘

Potentially photorefractive molecules, which possess both a charge transfer component and a nonlinear optical chromophore, were prepared by the direct N-monoalkylation of Disperse Orange 3 (1) with a carbazole alkyl bromide (2) utilizing phase transfer catalysis. Further N-alkylation of the remaining active N–H with alkyl halides with various chain lengths allowed the thermal properties of the Disperse Orange 3 derivatives to be fine-tuned.