REVERSE PHOTOCHROMIC COMPOUND

• Main Authors: SUZUKI Katsufumi, KATOH Ryuzi, ENOKI Masami, IMAZEKI Shigeaki, NEMOTO Kazuki, MURASE Tetsuji
• Format: Patent
• Language: English; French; German
• Published: 30.09.2020
• Subjects: ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; HETEROCYCLIC COMPOUNDS; LAKES; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; MORDANTS; NATURAL RESINS; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; ORGANIC CHEMISTRY; ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PHYSICS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP

A reverse photochromic compound of the related art has difficulty in sensing light with a wavelength of 600 nm or greater in a visible light region which has been used for medical applications. Therefore, an object of the present invention is to provide a reverse photochromic compound and a polymer which have a high sensitivity to light having a wavelength of 600 nm or greater.The present invention relates to a compound and the like represented by the following general formula (1).(In the formula, R1and R4each independently represent a hydrogen atom or the like, R2, R3, and R5each independently represent an alkyl group or the like, R6represents a group having a polymerizable unsaturated group, a carboxy group, or an alkoxycarbonyl group, R31and R32each independently represent an alkoxy group or the like, R33and R34each independently represent a hydrogen atom or the like, Y1represents an oxygen atom or a sulfur atom, An-represents an anion, n1to n3represent a specific integer, and R1and R2, R3and R4, and/or R33and R34may form an alkylene group.)