227471-74-1Relevant academic research and scientific papers
Study on the photochromism, photochromic fluorescence switch, fluorescent and colorimetric sensing for Cu2+ of naphthopyran-diaminomaleonitrile dyad and recognition Cu2+ in living cells
Gong, Xue,Jiang, Nan,Wang, Guang,Zhang, Heyang,Zhang, Zhuo,Zhong, Tianyuan
, (2020)
A well-designed naphthopyran-diaminomaleonitrile dyad (sensor 1) has been synthesized successfully, its molecular structure was well characterized by NMR and mass spectrometry. Sensor 1 exhibits excellent photochromic and photochromic fluorescence switch
Synthesis and optical properties of naphthopyran dyes conjugated with fluorescent stilbazolium moieties
Kahle, Ingolf,Troeber, Oliver,Richter, Hannes,Spange, Stefan
, p. 1479 - 1485 (2013/06/05)
The synthesis of new 3H-naphtho[2,1-b]pyran dyes substituted at position 8 of the naphthalene ring by either a stilbazolium or an 4-ethenyl-quinolinium group and their photochemical properties are described. In non-polar media the naphthopyran-stilbazoliu
Synthesis and reactivity of formyl-substituted photochromic 3,3- diphenyl-[3H]-naphtho[2,1-b]pyrans
Chamontin, Karine,Lokshin, Vladimir,Rossollin, Valerie,Samat, Andre,Guglielmetti, Robert
, p. 5821 - 5830 (2007/10/03)
Synthetic accesses to formylated photochromic 3,3-diphenyl-[3H]- naphthopyrans (or 2H-benzochromenes) are developed through classical cyclization between appropriate hydroxynaphthaldehydes and 1,1- diphenylpropyne-1-ol and also via substituent transformations on the naphthopyran skeleton including bromine/lithium exchange and the oxidation of an hydroxymethyl group. Examples of formyl group reactivity (Wittig and Knoevenagel reactions, imine formation) from these compounds are given, showing their interest in the subsequent preparation of supramolecular systems involving a photoreactive entity.
