4640-41-9Relevant academic research and scientific papers
Design of a novel cyclopropane donor bis(trimethylsilylmethyl)cyclopropane and its electron transfer reactions
Oku, Akira,Yamauchi, Yoshihito,Schroeder, Marc
, p. 1194 - 1195 (2001)
A novel donor of SET reactions, 1,1-bis(trimethylsilylmethyl)-2-phenylcyclopropane (BTCP), was designed to function as a homoallylic 1-phenyl-3-(trimethylsilylmethyl)-3-butenyl radical (5). Thus, non-irradiated reaction of BTCP with DDQ or chloranil gave
Molecular Tapes based on CN...Cl Interactions
Reddy, D. Shekhar,Panneerselvam, Kaliyamoorthy,Pilati, Tullio,Desiraju, Gautam R.
, p. 661 - 662 (1993)
Weak CN...Cl interactions may be used to design linear molecular tapes.
A Novel Synthesis of Heterocycles from Thiocarbohydrazides
Hassan,Mohamed,Aly,Mourad
, p. 61 - 70 (1997)
The reaction of thiocarbohydrazides 1a and thiocarbazones 1b with tetracyanoethylene (TCNE) afforded the thiazol, thiadiazole, thiazine, and thiadiazepine derivatives 4-7. 2-Dicyanomethyleneindane-1,3-dione(CNIND) reacted with 1a,b to give aminoindenopyrazolopyridazinone (12) and phenyl-1,2,3,4-tetraazacyclopentafluorene (13). The indazole and oxathiadiazole derivatives 17 and 19 were formed during the reaction of 1b with 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDO). 6,7-Dichloro-5-phenylpyrazolophthalazinol(21) was obtained from the reaction of 1b with 2,3,5,6-tetrachloro-1,4-benzoquinone (CHL-p). The oxidative cyclization of thiodicarbazones 2a-d with the above acceptors afforded the thiadiazole and thiadiazine derivatives 8 and 10.
Preparation and Electrochemical and Optical Properties of α-Alkoxyphthalocyanines with β-Pyridylthio Groups
Kimura, Takeshi,Kudo, Chiko,Nakajo, Shiduko
, p. 4006 - 4013 (2019)
Phthalocyanines (Pcs) 5a-Mg, 5b-Mg, 6a-Mg, and 6b-Mg with eight alkoxy groups at α-positions and 2- or 4-pyridylthio groups at the β-positions, were prepared from 3,6-dialkoxy-4,5-dipyridylthiophthalonitriles. Magnesium complexes 5a-Mg, 5b-Mg, and 6a-Mg were treated with trifluoroacetic acid to produce free-base compounds 5a-2H, 5b-2H, and 6a-2H. In the UV/Vis spectra, Q-band absorption of Mg and free-base Pcs appeared near 760 nm and 780 nm, respectively, in chloroform and 745 nm and 760 nm, respectively, in methanol. Emission spectra of these Pcs showed small Stokes shifts in chloroform and methanol. Reactions of 5a-Mg, 5b-Mg, and 5b-2H with methyl iodide produced the corresponding Pcs 7a-Mg, 7b-Mg, and 7b-2H with methyl pyridinium groups, respectively. After methylation of the pyridine nitrogen, the Pcs were moderately soluble in water but had little solubility in chloroform. The UV/Vis and emission spectra of methylated Pcs 7a-Mg, 7b-Mg, and 7b-2H were obtained in methanol and water. Photobleaching of diphenylisobenzofuran (DPBF) was examined in methanol in the presence of Pcs 7b-Mg and 7b-2H, and was monitored by UV/Vis spectroscopy.
COMPOUND, PHOTOSENSITIVE RESIN COMPOSITION COMPRISING THE SAME, PHOTORESIST, COLOR FILTER AND DISPLAY DEVICE
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Paragraph 0349-0350, (2020/12/30)
The present specification provides a compound represented by chemical formula 1 and a photosensitive resin composition including the same. A photosensitive material, a color filter and a display device are provided.
Discotic liquid crystals of transition metal complexes, 55 : Novel chlorine-substituted phthalocyanine derivatives showing mesomorphism and low HOMO energy level
Yatabe, Masashi,Kajitani, Akio,Yasutake, Mikio,Ohta, Kazuchika
, p. 32 - 45 (2018/03/26)
We have synthesized a series of novel phthalocyaninato copper(II) (abbreviated as PcCu) compounds, 1,4,8,11,15,18,22,25-octakisalkoxy-2,3,9,10,16,17,23,24-octachloro-phthalocyaninato copper(II) (abbreviated as (α-CnO)8(β-Cl)8PcCu (4a-4d): n = 6 (a), 8 (b), 10 (c) and 12 (d)) and, for comparison, another series of PcCu compounds, 1,4,8,11,15,18,22,25-octakisalkoxyphthalocyaninato copper(II) (abbreviated as (α-CnO)8PcCu (1a-1d)). The PcCu derivatives 1a-1d are substituted by alkoxy chains only at the α positions (1,4,8,11,15,18,22,25). On the other hand, the PcCu derivatives 4a-4d are substituted by alkoxy chains at the α positions and chlorine atoms at the β positions (2,3,9,10,16,17,23,24). We have investigated the influence of chlorine atoms substituted at the β positions of the Pc ring on mesomorphism, spectroscopic and electronic properties for these two series of PcCu derivatives 1 and 4 by using a polarizing optical microscope, DSC, temperature-variable small angle X-ray diffractometer, a UV-Vis spectrophotometer and cyclic voltammetry. Each of the derivatives 1a-1d is crystalline without showing mesomorphism. On the other hand, each of the chlorine-substituted PcCu derivatives 4a-4d shows plural phase transitions, and the longer chain-substituted PcCu derivatives 4c-4d show a rectangular ordered columnar [Colro(P2m)] mesophase. Furthermore, we have revealed that each of the PcCu derivatives 4a-4d shows a Q-band in the near-infrared region and a lower HOMO energy level than conventional phthalocyanine derivatives.
HIGH-AND LOW-POTENTIAL, WATER-SOLUBLE, ROBUST QUINONES
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Paragraph 00141, (2018/09/21)
Substituted hydroquinones, 1,4-quinones, catechols, 1,2-quinones, anthraquinones, and anthrahydroquinones are disclosed herein. The substituted hydroquinones and catechols have the formula: while the substituted 1,4-quinones or 1,2-have the corresponding oxidized structure (1,4- benzoquinones and 1,2-benzoquinones). One or more of R1, R2, R3 and R4 include a sulfonate moiety, a sulfonimide moiety, or a phosphonate moiety, and any of R1, R2, R3 and R4 that do not include one of these moieties include an alkyl, a cycloalkyl, a thioether, a sulfoxide, a sulfone, a haloalkyl, a halogen, a nitrile, an imide, a pyrazole, or combinations thereof. The substituted anthraquinones have the formula: while the substituted anthrahydroquinones have the corresponding reduced structure. One or more of R1-R8 have a sulfonate or phosphate tethered to the ring by a thi other, amine, or ether including one or more alkyl groups. Any of R1-R8 that do not contain one of these moieties include an alkyl, a cycloalkyl, a thiother, a sulfoxide, a sulfone, a haloalkyl, a halogen, a hydroxyl, an alkoxyl, an ether, an amine, or hydrogen The substituted hydroquinones, 1,4-quinones, catechols, 1,2-quinones, anthraquinones, or anthrahydroquinones are soluble in water, stable in aqueous acid solutions, and have useful reduction potentials in the oxidized form. Accordingly, they can be used as redox mediators in emerging technologies, such as in mediated fuel cells or organic-mediator flow batteries.
Diels-Alder trapping of in situ generated dienes from 3,4-dihydro-2H-pyran with p-quinone catalysed by p-toluenesulfonic acid
Mohan Raj, Radhakrishnan,Balasubramanian, Kalpattu K.,Easwaramoorthy, Deivanayagam
, p. 1115 - 1121 (2017/02/10)
This comprehensive study portrays that p-toluenesulfonic acid is a more efficient catalyst for the reaction between p-quinones and 3,4-dihydro-2H-pyran, than the Lewis acids. The products were accomplished by the Diels-Alder cycloaddition reaction and their mechanistic pathways have been formulated. The impact of C2 and C2,5 substituents of the p-quinones on the cycloaddition reaction has been explored. Remarkably, it is the first report to explore this kind of in situ generated diene for the Diels-Alder cycloaddition reaction.
NOVEL COMPOUND,PHOTOSENSITIVE RESIN COMPOSITION COMPRISING THE SAME AND COLOR FILTER
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Paragraph 0219-0221, (2017/09/20)
Provided are a compound represented by chemical formula 1, a photosensitive resin composition comprising the same and a color filter manufactured by using the photosensitive resin composition. In the chemical formula 1, each substituent is the same as defined in the specification. The compound of the present invention has excellent solubility with respect to an organic solvent.COPYRIGHT KIPO 2017
A Molecular Chameleon: Reversible pH- and Cation-Induced Control of the Optical Properties of Phthalocyanine-Based Complexes in the Visible and Near-Infrared Spectral Ranges
Safonova, Evgeniya A.,Martynov, Alexander G.,Nefedov, Sergey E.,Kirakosyan, Gayane A.,Gorbunova, Yulia G.,Tsivadze, Aslan Yu.
, p. 2450 - 2459 (2016/03/19)
A series of novel nonperipherally substituted tetra-15-crown-5-dibutoxyoxanthrenocyanines (H2, Mg, Zn), acting as chameleons with the unique properties of switchable absorption and emission in the near-infrared (NIR) spectral range have been synthesized and characterized by X-ray diffraction. The attachment of 15-crown-5-α-dibutoxyoxanthreno moieties to phthalocyanine is responsible for the high solubility of the resulting molecules and the red shift of the Q band to the NIR region and offers a unique possibility for postsynthetic modification of the optical properties of the molecules. Both aggregation of phthalocyanine and its participation in an acid-base equilibrium strongly alter their optical properties. For example, the absorption of complexes can be reversibly tuned from 686 up to 1028 nm because of the cation-induced formation of supramolecular dimers or subsequent protonation of meso-N atoms orf macrocycle, in contrast to peripherally substituted tetra-15-crown-5-phthalocyanines without oxanthrene moieties. The reversibility of these processes can be controlled by the addition of [2.2.2]cryptand or amines. All investigated compounds exhibit fluorescence with moderate quantum yield, which can also be switched between the ON and OFF states by the action of similar agents.
