344928-74-1Relevant academic research and scientific papers
An efficient multiple-mode molecular logic system for pH, solvent polarity, and Hg2+ ions
Zhang, Dong,Su, Jianhua,Ma, Xiang,Tian, He
, p. 8515 - 8521 (2008)
A novel fluorophore 1,3-bis(1,1,3-trimethyl-1H-benzo[e]indol-2(3H)-ylidene)propan-2-one (L) was synthesized and fully characterized by 1H NMR, 13C NMR, HRMS, and X-ray single-crystal structural analysis. Compound L is a pH-controlled molecular switch due to its protonation. The fluorescence change in protic polar solvents means that this compound also could be used as a protic solvent polarity sensor. Among the considered metal ions, the fluorescence of compound L could be quenched completely by Hg2+ ions with a high selectivity. Based on these fluorescence characters, this fluorescent dye L has promising applications as a multiple-mode molecular logic system.
Synthesis method of Cy series fluorescein and application in DNA sequencing
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Paragraph 0048; 0052-0054, (2019/02/21)
The invention discloses a synthesis method of Cy series fluorescein and application in DNA sequencing. The method comprises: step A, enabling a reactant A (the formula is shown in the specification) to be refluxed with a reactant YCH2(CH2)4COOH or YR to obtain reaction intermediates B (the formula is shown in the specification) and C (the formula is shown in the specification); step B, enabling B(the formula is shown in the specification) obtained in the step A to react with D (the formula is shown in the specification) to obtain E (the formula is shown in the specification), then directly adding C (the formula is shown in the specification) to obtain a target product by a one-pot method; in each structural formula, Y is Cl, Br, I; R is Me, ethyl, propyl; X is O, CH (CH3)2; R1 to R4 are optionally H or SO3, or R1, R2 and a benzene ring jointly form a naphthalene ring and a derivative, or R3, R4 and a benzene ring jointly form a naphthalene ring and a derivative; n is 1, 3, 5. The method obtains the desired asymmetric structure fluorescein by the one-pot method, which has good reaction selectivity and is easy to separate and purify, in addition, required experimental conditionsare simple. The synthesis process is a conventional chemical reaction, and can be used for large-scale popularization.
SPIRO[CHROMAN-2,2'-INDOLE] DERIVATIVES AS CYANIDE ION CHEMOSENSORS
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Page/Page column 6-7, (2014/12/12)
The invention describes new spiro[chroman-2,2'-indole] derivatives of formula (I). When compounds of the invention, 1',3',3,4-tetrahydrospiro[chromen-2,2'-indoles], are treated with solution containing cyanide ions, 3,4-dihydropyrane ring opening occurs,
Facile synthesis of spiro[benzo[e]indole-2,2′-piperidine] derivatives and their transformation to novel fluorescent scaffolds
Buinauskaite, Vida,Martynaitis, Vytas,Mangelinckx, Sven,Kreiza, Gediminas,De Kimpe, Norbert,?a?kus, Algirdas
, p. 9260 - 9266 (2012/10/29)
The reaction of azaheterocyclic enamines with acrylamide was employed for the preparation of novel fluorescent scaffolds possessing a benzo[e]indoline moiety. Reaction of 3-substituted 2-methylidene-1H-benzo[e]indole with acrylamide gave rise to spiro[ben
Photochromic dye
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Page/Page column 4, (2010/02/11)
The invention provides a photochromic dye of a structure containing a common structure of spirooxazine series compounds and three substituents. The photochromic dye according to the invention exhibits characteristics of a high heat stability, good light fatigue resistance, high sensitivity, extremely degradation rate and the like. This photochromic dye can be formulated with suitable organic solvents and used as photochromic functional colorants under UV light excitation. Further, this photochromic dye can be synthesized and purified in simple steps with cheap raw materials and hence at a greatly lowered production cost.
