Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
REVERSE PHOTOCHROMIC COMPOUND
Document Type and Number:
WIPO Patent Application WO/2018/143239
Kind Code:
A1
Abstract:
Conventional reverse photochromic compounds have difficulty in sensing light in a visible light region of 600 nm or more used in medical applications, etc. The present invention addresses the problem of providing a reverse photochromic compound and polymer which are highly sensitive even to light of 600 nm or more. The present invention pertains to a compound or the like represented by general formula (1) (wherein, R1 and R4 each independently represent a hydrogen atom or the like, R2, R3, and R5 each independently represent an alkyl group or the like, R6 represents a group having a polymerizable unsaturated group, a carboxy group, an alkoxycarbonyl group, or the like, R31 and R32 each independently represent an alkoxy group or the like, R33 and R34 each independently represent a hydrogen atom or the like, Y1 represents an oxygen atom or a sulfur atom, An- represents an anion, n1-n3 represent a specific integer, and R1 and R2, R3 and R4, and/or R33 and R34 may form an alkylene group.)

Inventors:
KATOH RYUZI (JP)
ENOKI MASAMI (JP)
NEMOTO KAZUKI (JP)
SUZUKI KATSUFUMI (JP)
MURASE TETSUJI (JP)
IMAZEKI SHIGEAKI (JP)
Application Number:
PCT/JP2018/003112
Publication Date:
August 09, 2018
Filing Date:
January 31, 2018
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
FUJIFILM WAKO PURE CHEMICAL CORP (JP)
UNIV NIHON (JP)
International Classes:
C07D405/06; C08F20/36; C09K9/02
Foreign References:
JPH09124654A1997-05-13
JP2000219687A2000-08-08
US5919608A1999-07-06
JP2001115154A2001-04-24
JPH07206858A1995-08-08
JPH09124654A1997-05-13
JP2012017442A2012-01-26
Other References:
YUAN, LIN ET AL.: "A Unique Class of Near-Infrared Functional Fluorescent Dyes with Carboxylic-Acid-Modulated Fluorescence ON/OFF Switching: Rational Design, Synthesis, Optical Properties, Theoretical Calculations, and Applications for Fluorescence Imaging in Living Animals", JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 134, no. 2, 2012, pages 1200 - 1211, XP055530679, ISSN: 0002-7863
TOLMACHEV, A. I. ET AL.: "Synthesis, electronic structure, and absorption spectra of the merocyanines derived from pyranes and benzopyranes", DYES AND PIGMENTS, vol. 74, no. 2, 2007, pages 348 - 356, XP005871158, ISSN: 0143-7208
HARRIS, D. KRISTI ET AL.: "Dual-use chromophores for photorefractive and irreversible photochromic applications", APPLIED OPTICS, vol. 40, no. 17, 2001, pages 2895 - 2901, XP001103068, ISSN: 0003-6935
GARCIA-AMOROS, JAUME ET AL.: "Plasmonic Activation of a Fluorescent Carbazole-Oxazine Switch", CHEMISTRY-A EUROPEAN JOURNAL, vol. 20, no. 33, 23 July 2014 (2014-07-23), pages 10276 - 10284, XP055614058, ISSN: 0947-6539, DOI: 10.1002/chem.201403509
NEMOTO, KAZUKI ET AL.: "Merocyanine blue dye exhibiting photochromic behavior", PROGRAM AND LECTURE PROCEEDINGS OF JOINT MEETING OF THE TOHOKU AREA CHEMISTRY SOCIETIES, vol. 2017, September 2017 (2017-09-01), pages 96, XP9515692
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 134, no. 2, 2012, pages 1200
See also references of EP 3578556A4
Download PDF: