Abstract
New colourless naphthoquinone methide-type near-IR colour formers 1 have been synthesized, which immediately exhibit intense absorption in the near-IR region upon oxidation by p-benzoquinone. The colour development has been investigated using the stopped-flow technique. In the presence of a basic catalyst, NEt3, oxidation of 1 gave the corresponding carbonyl cyanide derivatives 3 as the major products.
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Schedule a callMore From: Journal of the Chemical Society, Perkin Transactions 1
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