Synthesis and study of N,N‐disubstituted 4‐[(4‐aminophenyl)diazenyl]benzylidene‐4′‐alkylanilines

Yang‐Chu Lin Union Chemical Laboratory, Industrial Research Institute, Hsinchu, Taiwan 300, ROC

Kung‐Lung Cheng Union Chemical Laboratory, Industrial Research Institute, Hsinchu, Taiwan 300, ROC

Woan‐Shiow Tzeng Union Chemical Laboratory, Industrial Research Institute, Hsinchu, Taiwan 300, ROC

Chih‐Lin Su Union Chemical Laboratory, Industrial Research Institute, Hsinchu, Taiwan 300, ROC

Long‐Je Lee Department of Applied Chemistry, National Chi Nan University, Puli, Taiwan 545, ROC

Ling‐Yung Wang Department of Applied Chemistry, National Chi Nan University, Puli, Taiwan 545, ROC

Chun‐Ming Yang Department of Applied Chemistry, National Chi Nan University, Puli, Taiwan 545, ROC

Long‐Li Lai Department of Applied Chemistry, National Chi Nan University, Puli, Taiwan 545, ROCCorrespondence[email protected]

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Abstract

A series of N,N‐disubstituted‐4‐[(4‐aminophenyl)diazenyl]benzylidene‐4′‐alkylanilines (azo dyes) were synthesized from the reaction of the corresponding benzaldehyde with alkylanilines. These azo dyes exhibit nematic and SmC phases on heating. Their order parameter, photo‐stability and miscibility were studied by investigation of a representative sample.

Acknowledgements

This work was financially supported by the National Chi Nan University and the National Science Council (NSC 93‐2113‐M‐260‐002). The National Center of High‐Performing Computing and the Institute of Chemistry, Academia Sinica are also highly appreciated for providing the most helpful Beilstein database system and library service, respectively.

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Synthesis and study of N,N‐disubstituted 4‐[(4‐aminophenyl)diazenyl]benzylidene‐4′‐alkylanilines

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Synthesis and study of N,N‐disubstituted 4‐[(4‐aminophenyl)diazenyl]benzylidene‐4′‐alkylanilines

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