3186-43-4Relevant academic research and scientific papers
Xanthene pigment, coloring composition containing same, colorant for color filter, and color filter
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Paragraph 0198-0199, (2021/05/19)
The invention provides a xanthene pigment, a coloring composition containing the xanthene pigment, a colorant for a color filter, and a color filter. The present invention provides a xanthene pigment having excellent color characteristics (brightness, contrast ratio, etc.), solubility, and heat resistance, a coloring composition containing the pigment, a colorant for a color filter containing the pigment or the coloring composition, and a color filter. A xanthene dye represented by general formula (1). [In formula (1), R1 represents an optionally substituted alkylene group, and R1a represents a halogen atom,-OH,-CN,-OCH3,-NO2, a sulfonic acid group, a sulfonyl group, a carboxyl group, a carbonyl group, or the like. And R2 represents a group different from R1-R1a and represents an optionally substituted alkyl group. And R3 represents-H, a halogen atom,-NO2 or an alkyl group. R4 represents-SO3-,-CO2-, an alkyl group, or the like; n represents an integer of 1-4, An represents an anion, k represents an integer of 1-3, and b represents an integer of 0-3.
Compound, compound product and preparation method and application thereof
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Paragraph 0032-0034, (2021/10/02)
The invention discloses a compound, a compound product and a preparation method and application thereof. The compound has the structural general formula shown 1, and R. 1 Alkyl. A compound product comprising the compound of Formula 1. The compound and the compound product can be used for repelling insects, and the repelling effect is good.
Trifluralin haptens, as well as preparation method and application thereof
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Paragraph 0012; 0027, (2017/08/30)
The invention discloses trifluralin haptens, as well as a preparation method and application thereof. The trifluralin hapten has a structural formula as shown in the specification. The six haptens are specific antibodies which have linker arms derived on amino sites, have active carboxyls, enable a body to generate high titer after being coupled with carrier protein and can be used for identifying common structures of trifluralin pesticide. The hapten compound is simple and convenient in synthesizing method, has relatively high purity, and can be applied to synthesis of antigen systems of animal immune, so that the blank in the technical field of trifluralin immunological detection method in China can be filled, and foundation is laid for further development of trifluralin immunological detection method.
Titania nanoparticles stabilized HPA in SBA-15 for the intermolecular hydroamination of activated olefins
Sawant-Dhuri, Dhanashri,Balasubramanian, Veerappan V.,Ariga, Katsuhiko,Park, Dae-Hwan,Choy, Jin-Ho,Cha, Wang Soo,Al-Deyab, Salem S.,Halligudi, Shivappa B.,Vinu, Ajayan
, p. 3347 - 3354 (2015/04/16)
A liquid phase hydroamination (HA) of α,β-ethylenic compounds with amines was investigated with TiO2 nanoparticles stabilized 12-tungstophosphoric acid (TPA) in SBA-15. The catalysts were prepared by wet impregnation of TPA/TiO2 nanoparticles into the SBA-15 and calcined at different temperatures. The characterization results reveal that the textural properties and the acidity of the prepared catalysts can be finely controlled with the simple adjustment of the calcination temperature and the structure of the support, decorated with the TiO2 and TPA nanoparticles, was intact even after the modification. The prepared catalysts were investigated for HA of ethyl acrylate with different aromatic and aliphatic amines over a wide range of reaction conditions to optimize the yield and the selectivity of product. It was found that this process is 100% atom efficient and the catalytic performance depended significantly on the loading of TPA over the catalyst and the calcination temperature. Under optimized reaction conditions, the best catalyst, 15 wt%TPA/22.4 wt%TiO2/SBA-15 calcined at 1123 K, offered the highest conversion of p-ethylaniline (70%) with 100% chemo-selectivity to the anti-Markovnikov product, i.e., the mono-addition product. The reaction was heterogeneously catalyzed and no contribution from leached TPA into the reaction was observed.
Promiscuous behavior of Rhizomucor miehei lipase in the synthesis of N-substituted β-amino esters
Monsalve, Leandro N.,Gillanders, Florencia,Baldessari, Alicia
experimental part, p. 1164 - 1170 (2012/04/10)
A mild and efficient procedure for the aza-Michael addition of amines to acrylates by using lipases as catalysts is reported. Various lipases, mono- and bifunctional amines, alkyl acrylates, and reaction parameters were studied. Under the optimal conditio
6,7-dihydropyrrol[3,4-c]pyrido[2,3-d]pyrimidine derivatives
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, (2008/06/13)
The present invention concerns compounds of the formula: STR1 wherein R is a lower alkyl group, an aryl group or an alkylaryl group and X and Y are the same or different, and each is OH, NH2, or SH. The aryl group or the aryl moiety of the alkylaryl group may be unsubstituted, monosubstituted, disubstituted or trisubstituted. If substituted, each substituent may independently be an alkyl group, an alkyloxy group or a halogen. The present invention also provides methods for synthesizing the compounds described above.
