Organic compounds -- part of the class 532-570 series – Organic compounds – Chalcogen in the nitrogen containing substituent
Patent
1993-12-02
1995-08-29
Shah, Mukund J.
Organic compounds -- part of the class 532-570 series
Organic compounds
Chalcogen in the nitrogen containing substituent
252586, C07D26514
Patent
active
054461499
ABSTRACT:
Photochromic compounds having the following structure II ##STR1## in which R.sup.1 is a group selected from hydrogen, alkyl, alkoxy, amino, aryl or heteroaryl;
REFERENCES:
patent: 4913544 (1990-04-01), Rickwood et al.
patent: 4931219 (1990-06-01), Kwiatkowski et al.
patent: 4968454 (1990-11-01), Crano et al.
patent: 5017698 (1991-05-01), Machida et al.
patent: 5114621 (1992-05-01), Guglielmetti et al.
patent: 5139707 (1992-08-01), Guglielmetti et al.
European Search Report EP 93 30 9416, dated Feb. 15, 1994.
C. B. McArdle, "Applied Photochromic Polymer Systems", 1992, Chapter 2, pp. 33-34.
Alan R. Katritzky and Kunihiko Akutagawa, "A Practical Synthetic Method For N-Methyl-o-Toluidine", OPPI Briefs, vol. 21, No. 3, 1989, pp. 340-341.
Alan R. Katritzky, Stanislaw Rachwal and Bogumila Rachwal, "The Chemistry of Benzotriazole, Part 3..sup.1 The Aminoalkylation of Benzotriazole", J. Chem. Soc. Perkin Trans. 1, 1987, pp. 799-804.
Louis F. Fieser, ".beta.-Naphthoquinone and .alpha.-Naphthoquinone", Organic Synthesis 1937, 17, pp. 68-72.
Katsuhira Yoshida, Tetsunao Koujiri, Norio Oga, Miwa Ishiguro and Yuji Kubo, "The Effect of Metal Chelate Complexation on The Reactivity and Absorption Spectra of 1,2-Naphthoquinones: The Synthesis of New Types of Near I.r. Absorbing Dyes", J. Chem. Soc., Chem. Commun., 1989, pp. 708-710.
Marshall Gates, "The Condensation of Naphthoquinones With Polar Ethylenes", from the Marian Edwards Park Laboratory of Bryn Mawr College, Jan. 1944, vol. 66, pp. 124-130.
Marsden Sean D.
Rickwood Martin
Grumbling Matthew V.
Pilkington plc
Shah Mukund J.
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