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Synthesis of 5'-Functionalized Indolinospiropyrans with Vinylene Unit as Linker |
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| Authors: | NIU Chengshan SONG Yanlin YANG Lianming |
| Affiliation: | 1. Beijing National Laboratory for Molecular Sciences (BNLMS),Laboratory of New Materials,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100190,China;Graduate School of Chinese Academy of Sciences,Beijing 100049,China 2. Beijing National Laboratory for Molecular Sciences (BNLMS),Laboratory of New Materials,Institute of Chemistry,Chinese Academy of Sciences,Beijing 100190,China |
| Abstract: | A protocol for the synthesis of a new family of spiropyran derivatives is described. A 5‐formylated indoline intermediate ( 5 ) was achieved for the first time, which was the key intermediate for constructing the spiropyran derivatives with vinylene linker. Five 5′‐functionalized indolinospiropyrans ( 11 – 15 ) were obtained by utilizing vinylene unit as a linkage between the photochromic spiropyran fragment and the ferrocene or triphenylamine donor. |
| Keywords: | synthesis photochromic material spiropyran compound |
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