110930-61-5Relevant academic research and scientific papers
Naphthoquinone Methide-type Near-IR Colour Formers: their Synthesis and Oxidation Properties
Kubo, Yuji
, p. 889 - 892 (2007/10/02)
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-f
Novel Syntheses of Naphthoquinone Methide Near-infrared Dyes
Kubo, Yuji,Mori, Fujio,Komatsu, Keiko,Yoshida, Katsuhira
, p. 2439 - 2442 (2007/10/02)
A novel type of naphthoquinone methide near-i.r. dye has been synthesized by condensing 1-naphtyl-malononitrile or 1-naphthylcyanoacetamide with p-N,N-dialkylaminoanilines in the presence of an oxidizing agent under alkali conditions.These dyes can absorb near-i.r. light at 722-761 nm.A dye film of 4-(4-diethylamino-2-methylphenylimino)-1,4-dihydronaphthylidenemalononitrile showed a λmax. value of 785 nm and reflected 23.3percent of the incident light intensity at 830 nm; these properties make the compound a potential diode-laser optical storage medium.
Syntheses and Characteristics of Naphthoquinone Methide Near Infrared Dyes for Optical Storage Media
Kubo, Yuji,Mori, Fujio,Yoshida, Katsuhira
, p. 1761 - 1762 (2007/10/02)
New type of naphthoquinone methide near infrared dyes have been synthesized by condensing 1-naphthylmalononitrile or 1-naphthylcyanoacetamide with p-N,N-dialkylaminoaniline hydrochlorides in the presence of oxidizing agents.These dyes can absorb near infr
