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Unexpected chromogenic properties of 1,3,3-trimethylspiro(indoline-2,3′-[3H]naphtho [2,1-b][1,4]oxazine) in the solid phase: photochromism, piezochromism and acidichromism

✍ Scribed by Gentili, Pier Luigi; Nocchetti, Morena; Miliani, Costanza; Favaro, Gianna


Book ID
115489667
Publisher
Royal Society of Chemistry
Year
2004
Tongue
English
Weight
471 KB
Volume
28
Category
Article
ISSN
1144-0546

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Synthesis and properties of 1,3,3-trimet
✍ Mark York; Richard A. Evans 📂 Article 📅 2010 🏛 Elsevier Science 🌐 French ⚖ 319 KB

## a b s t r a c t The synthesis and photochromic properties of 1,3,3-trimethylspiro[indoline-2,3 0 -naphtho[2,1-b][1,4]oxazin]-6 0 -amine, a novel red-colouring photochromic spirooxazine and derivatives is reported. The synthesis proceeds via an unusual one-pot transamination, oxime formation, N-O