56709-94-5

Upstream product

• 771-98-2 1-Phenylcyclohexene 
• 68-12-2 N,N-dimethyl-formamide 
• 62-53-3 aniline 
• 4994-16-5 4-phenylcyclohexene 

Downstream Products

• 70446-38-7 3-ethyl-2-(2-{3-[2-(3-ethyl-3H-benzothiazol-2-ylidene)-ethylidene]-2-phenyl-cyclohex-1-enyl}-vinyl)-benzothiazolium; iodide 
• 98826-75-6 C₂₀H₁₃N₄^(1-)*C₄H₁₂N⁽¹⁺⁾ 
• 98826-91-6 2-{2-Phenyl-3-[1-phenylamino-meth-(E)-ylidene]-cyclohex-1-enylmethylene}-malononitrile 

Relevant academic research and scientific papers

Introduction of various substitutions to the methine bridge of heptamethine cyanine dyes: Via substituted dianil linkers

The unique optical properties of cyanine dyes have prompted their use in numerous applications. Heptamethine cyanines are commonly modified on the methine bridge after synthesis of a meso-chlorine containing cyanine. Herein, a series of heptamethine cyanines containing modified methine bridges were synthesized using substituted dianil linkers. Their optical properties including, molar absorptivity, fluorescence, and quantum yield were measured as well as their hydrophobic effects in polar buffer solution. It was shown that dyes containing cyclopentene in the methine bridge or a phenyl ring in the meso position display increased molar absorptivity while the increased flexibility of the dye containing a cycloheptene in the methine bridge prevented fluorescence.

NOVEL CYANINE COMPOUND AND NEAR-INFRARED CUT FILTER COMPRISING THE COMPOUND

PROBLEM TO BE SOLVED: To provide a cyanine compound that is a novel near-infrared absorbing dye, and a thermosetting resin composition prepared with the compound, and a near-infrared cut filter for imaging elements such as CCD and CMOS, prepared therewith and having excellent heat resistance. SOLUTION: The problem can be solved by a cyanine compound that is a novel near-infrared absorbing dye having excellent heat resistance, and a near-infrared cut filter prepared with a thermosetting resin composition comprising an epoxy resin as a thermosetting resin. SELECTED DRAWING: None COPYRIGHT: (C)2016,JPOandINPIT

FLUORINATED CYANINE COMPOUND AND NEAR-INFRARED CUT FILTER COMPRISING THE COMPOUND

PROBLEM TO BE SOLVED: To provide a fluorinated cyanine compound that is a novel near-infrared absorbing dye having excellent heat resistance, and a thermosetting resin composition prepared with the compound, and a near-infrared cut filter for imaging elements such as CCD and CMOS, prepared therewith and having excellent heat resistance. SOLUTION: A fluorinated cyanine compound is synthesized from the reaction of, for example, 1-ethyl-5,7-difluoro-2,3,3-trimethyl-3H-indolenine iodine salt, glutaconaldehydedianil hydrochloride, and potassium salt of tristrifluoromethanesulfonylmethide in the presence of sodium acetate, acetic acid, and acetic anhydride. SELECTED DRAWING: None COPYRIGHT: (C)2016,JPOandINPIT

TRIFLUOROMETHYLATED CYANINE COMPOUND AND NEAR-INFRARED CUT FILTER COMPRISING THE COMPOUND

PROBLEM TO BE SOLVED: To provide a trifluoromethylated cyanine compound that is a novel near-infrared absorbing dye, and a thermosetting resin composition prepared with the compound, and a near-infrared absorbing cut filter for imaging elements such as CCD and CMOS, prepared therewith and having excellent heat resistance. SOLUTION: The problem can be solved by a trifluoromethylated cyanine compound that is a novel near-infrared absorbing dye having excellent heat resistance, and a near-infrared cut filter prepared with a thermosetting resin composition comprising an epoxy resin as a thermosetting resin. SELECTED DRAWING: None COPYRIGHT: (C)2016,JPOandINPIT

FLUORINATED CYANINE COMPOUND AND NEAR-INFRARED CUT FILTER COMPRISING THE COMPOUND

PROBLEM TO BE SOLVED: To provide a fluorinated cyanine compound that is a novel near-infrared absorbing dye having excellent heat resistance, and a thermosetting resin composition prepared with the compound, and a near-infrared cut filter for imaging elements such as CCD and CMOS, prepared therewith and having excellent heat resistance. SOLUTION: The present invention provides a fluorinated cyanine compound represented by formula (1) (R1 independently represent a substituted/unsubstituted C1-C5 alkyl group or a substituted/unsubstituted C1-C5 alkoxyalkyl group; D is a C7 methine chain substituted/unsubstituted by Cl, an acyloxy group and the like or a C10 methine chain including a cyclohexene ring with the substituent; X- is tris(trifluoromethanesulfonyl)methide anion). SELECTED DRAWING: None COPYRIGHT: (C)2016,JPOandINPIT