PYRANOQUINAZOLINE DERIVATIVES AND NAPHTHOPYRAN DERIVATIVES

• US 20200131193A1
• Filed: 01/31/2018
• Published: 04/30/2020
• Est. Priority Date: 03/14/2017
• Status: Active Grant

• Current Assignee: Kanto Kagaku Kabushiki Kaisha
• Original Assignee: Kanto Kagaku Kabushiki Kaisha
• Inventors: ABE, Jiro, INAGAKI, Yuki, SUGA, Takayoshi, NAGASAWA, Hiroto
• Granted Patent: US 11,485,812 B2
• Time in Patent Office: Days
• CPC Class Codes: C07D 309/24 Methylol radicals
• CPC Class Codes: C07D 311/92 Naphthopyrans; Hydrogenated naphthopyrans
• CPC Class Codes: C07D 405/10 linked by a carbon chain containing aromatic rings
• CPC Class Codes: C07D 491/052 the oxygen-containing ring being six-membered
• CPC Class Codes: C07D 493/04 Ortho-condensed systems
• CPC Class Codes: C07D 519/00 Heterocyclic compounds containing more than one system of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring system not provided for in groups C07D453/00 or C07D455/00
• CPC Class Codes: C08F 220/1804 C4-(meth)acrylate, e.g. butyl (meth)acrylate, isobutyl (meth)acrylate or tert-butyl (meth)acrylate
• CPC Class Codes: C08F 220/346 and further oxygen
• CPC Class Codes: C08L 101/12 characterised by physical features, e.g. anisotropy, viscosity or electrical conductivity liquid crystal materials or compositions C09K19/00
• CPC Class Codes: C09D 133/08 Homopolymers or copolymers of acrylic acid esters
• CPC Class Codes: C09K 9/02 Organic tenebrescent materials
• CPC Class Codes: G02B 1/041 Lenses
• CPC Class Codes: G02B 5/202 comprising a gas or vapour
• CPC Class Codes: G02B 5/23 Photochromic filters

Abstract

[Problem] A problem is presented in that conventional photochromic compounds cannot be considered adequate in terms of the colorizing/decolorizing rate and durability, and the production process therefore has many steps. The present invention provides an industrially applicable photochromic compound that has both a rapid colorizing/decolorizing reaction and high durability and can also be synthesized at a low cost.

[Solution] This compound is characterized in that etheric oxygen atoms are bonded to the carbon atoms at position 1 of a pyranoquinazoline (8H-pyrano[3,2-f]quinazoline) skeleton and position 10 of a naphthopyran (3H-naphtho[2,1-b]pyran) skeleton, said compound having photochromic properties and being a photochromic compound that has both a rapid colorizing/decolorizing reaction and high durability. Also provided is an industrially applicable photochromic compound that can be synthesized at a low cost.

Claims

1. A compound represented by the following general formulas (1), (2) or (3):

2. A compound formed by copolymerizing the compound as claimed in claim 1.

3. A solvent comprising the compound as claimed in claim 1 or 2.

4. A resin comprising the compound as claimed in claim 1 or 2.

5. A photo chromic material comprising the compound as claimed in claim 1 or 2.

6. A photo chromatic lens comprising the compound as claimed in claim 1 or 2.

7. An optical switch comprising the compound as claimed in claim 1 or 2.