42172-62-3Relevant articles and documents
Facile Preparation of α-Cyano-α,ω-Diaryloligovinylenes: A New Class of Color-Tunable Solid Emitters
An, Peng,Xu, Nian-Sheng,Zhang, Hao-Li,Cao, Xiao-Ping,Shi, Zi-Fa,Wen, Wei
, p. 1959 - 1966 (2015/09/07)
An efficient Knoevenagel condensation reaction was used to construct a series of α-cyano-α,ω-diaryloligovinylenes, which show prominent fluorescence emission in the solid state. On investigating the effect of conjugation length on fluorescent properties,
Efficient and reusable amine-functionalized polyacrylonitrile fiber catalysts for Knoevenagel condensation in water
Li, Guowei,Xiao, Jia,Zhang, Wenqin
experimental part, p. 2234 - 2242 (2012/09/10)
A series of new fiber catalysts has been synthesized by aminating a commercially available polyacrylonitrile fiber with polyamines such as diethylenetriamine and triethylenetetramine. These fiber catalysts can efficiently catalyze the Knoevenagel condensation of benzaldehyde and ethyl cyanoacetate in water (yields: 95-98%). The triethylenetetramine aminated fiber catalyst was used to catalyze the condensations of a wide range of aromatic aldehydes and active methylene compounds and in each case, this catalyst performed well with yields higher than 93%. This fiber catalyst also exhibited excellent reusability (up to 21 times) and photostability.