Synthesis and properties of 1,3,3-trimet
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Mark York; Richard A. Evans
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Article
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2010
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Elsevier Science
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French
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## 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