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  • An unusual addition reaction for constructing a novel pH-controlled fluorescence switch.

An unusual addition reaction for constructing a novel pH-controlled fluorescence switch.

Organic letters (2010-12-15)
Chunjie Zhou, Yongjun Li, Yingjie Zhao, Jianhong Zhang, Wenlong Yang, Yuliang Li
PMID21141986
ABSTRACT

A pH-controlled fluorescence switch based on a core-substituted naphthalenediimide compound (NDI-DBU) was constructed. The novel pentacyclic compound (NDI-DBU) was derived from naphthalenediimide (NDI) and 1,8-diazabicyclo[5.4.0]undec-7-ene (DBU) in only one synthetic operation, catalysized by CuI.