Title:
ISOINDOLINE COMPOUND
Document Type and Number:
WIPO Patent Application WO/2023/243354
Kind Code:
A1
Abstract:
Provided are: a bio-derived isoindoline compound which can be used as an isoindoline-based yellow pigment and is produced by a safe, clean, green and carbon-neutral approach; and a composition containing the isoindoline compound. The isoindoline compound contains a radiocarbon atom 14C and has a group represented by formula (A). (In formula (A), R1 to R4 each independently represent a hydrogen atom, a linear or branched alkyl group having 1 to 12 carbon atoms, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, or a phenyl group which may be substituted by an alkyl group, in which R2 and R3 may together be ring-closed to together form a 5- to 8-membered ring; R7 to R8 each independently represent a hydrogen atom, a linear or branched alkyl group having 1 to 12 carbon atoms, or a phenyl group which may be substituted by an alkyl group; and * represents a bonding hand.)
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Inventors:
FOO SIONGWAN (JP)
EBATO HIROSHI (JP)
EBATO HIROSHI (JP)
Application Number:
PCT/JP2023/019515
Publication Date:
December 21, 2023
Filing Date:
May 25, 2023
Export Citation:
Assignee:
DAINIPPON INK & CHEMICALS (JP)
International Classes:
C07D403/04; C07D403/14; C09B57/04; C09B67/20
Domestic Patent References:
| WO2022014635A1 | 2022-01-20 | |||
| WO2022045235A1 | 2022-03-03 | |||
| WO2022045236A1 | 2022-03-03 |
Foreign References:
| CN114573998A | 2022-06-03 | |||
| CN103289434A | 2013-09-11 | |||
| US20110023754A1 | 2011-02-03 | |||
| CN103013159A | 2013-04-03 | |||
| JPH07330729A | 1995-12-19 | |||
| GB1113530A | 1968-05-15 |
Attorney, Agent or Firm:
TAKAOKA Ryoichi et al. (JP)
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