708-06-5Relevant articles and documents
Pyrophosphate selective fluorescent chemosensors: Cascade recognition of nuclear stain mimicking DAPI
Goswami, Shyamaprosad,Das, Avijit Kumar,Pakhira, Bholanath,Basu Roy, Sohini,Maity, Anup Kumar,Saha, Partha,Sarkar, Sabyasachi
, p. 12689 - 12697 (2014)
A new zinc(ii) complex with a condensed hydroxynaphthyl pyridine (SPHN) as the coordinated ligand has been synthesized for the selective recognition of pyrophosphate (PPi) over other anions including phosphate in a mixed aqueous solution. The fluorescence enhancement of SPHN in association with Zn 2+ ions is quenched in the presence of intracellular pyrophosphate. This phenomenon is utilized in the construction of a logic gate. The binding of SPHN with Zn2+ and its displacement by PPi have been established by photophysical investigation and supported by the DFT level of studies. The development of blue fluorescence in the {SPNH-Zn} complex upon binding of zinc with SPHN is shown to be useful as a nucleus marker in a cell similar to the commercially available staining compound, DAPI (diamino-2-phenylindole). This journal is the Partner Organisations 2014.
Rapid detection of hydrazine in a naphthol-fused chromenyl loop and its effectiveness in human lung cancer cells: Tuning remarkable selectivity via the reaction altered pathway supported by theoretical studies
Goswami, Shyamaprosad,Das, Avijit Kumar,Saha, Urmila,Maity, Sibaprasad,Khanra, Kalyani,Bhattacharyya, Nandan
, p. 2134 - 2139 (2015)
Our designed and synthesized chemosensor naphthalene based chromenyl derivative (NAC) [1-(3-hydroxy-3 methyl-3H-benzo[f]chromen-2-yl) ethanone] has been used for fast (2H4 by a new way via the chromenyl ring opening followed by the pyrazole ring formation giving a strong blue fluorescence. The DFT study and the real application in different water samples along with the dipstick method in low cost devices have also been performed here. Human lung cancer cells (NCI-H460) have been used for hydrazinolysis of the NAC in vivo system for detection by the appearance of blue fluorescence and also for the MTT assay showing its remarkable cancer sensitivity. This journal is
Synthesis of 2-hydroxy-1-naphthaldehyde under conditions of heterogeneous catalysis
Kalechits,Osinovskii,Matveenko,Ol'khovik
, p. 962 - 964 (2002)
A procedure was developed for synthesis of 2-hydroxy-1-naphthaldehyde by Reimer-Tiemann fluorination of 2-naphthol under conditions of heterogeneous catalysis.
Single chemosensor for highly selective colorimetric and fluorometric dual sensing of Cu(II) as well as 'NIRF' to acetate ion
Goswami, Shyamaprosad,Maity, Sibaprasad,Das, Avijit Kumar,Maity, Annada C.
, p. 6631 - 6634 (2013)
A novel fluorescent probe for the copper(II) ion in mixed aqueous media, based on fluorescence quenching mechanism with noticeable color change from light to dark yellow, was designed and synthesized. It also exhibited high selectivity for acetate in acetonitrile over other common anions in the near infrared region (NIR) accompanied with exciting color changes from light yellow to pink. Hence sensor 1 ascertains its dual chemosensing ability toward Cu(II) and acetate ions as evidenced by competitive experiments.
Nanoarchitecture self-assembly and photochromic studies of 2,2-diarylnaphthopyrans
Tan, Ting-Feng,Han, Jie,Pang, Mei-Li,Fu, Yi-Fang,Ma, Hong,Ma, Yu-Xin,Meng, Ji-Ben
, p. 4900 - 4906 (2006)
The synthesis and photochromic properties of novel 2,2-diarylnaphthopyrans were described. Significantly, the nanostructured architecture through two-component self-assembly of a photochromic naphthopyran and an asymmetric biphenyl was determined by X-ray diffraction. The structure motifs of nanocavities were formed by Cl?O interactions and Ar-H?Cl hydrogen bonds among the photochromic naphthopyran molecules. It was further shown by TEM that the dimensions of cavity structures were up to nanometer level, which provides the potential to capture useful nanoscale entities and control photochromism in organic materials.
A rhodamine derivative as a highly sensitive chemosensor for iron(iii)
Wu, Kaitian,Xiao, Hongde,Wang, Lele,Yin, Gui,Quan, Yiwu,Wang, Ruiyong
, p. 39984 - 39990 (2014)
A novel rhodamine-based fluorescent probe P1 was synthesized for the optical detection of Fe3+. Compared with other commonly coexisting metal ions in aqueous system, it exhibited high sensitivity and selectivity for Fe3+. The detection limit was only 0.1 μM with fluorescence experiment. The rapid enhancement of fluorescence intensity on the addition of Fe3+provided a good method for the detection for Fe3+. The color change was visible and distinct, so it could be used for naked-eye detection. Furthermore, the fluorescent probe was proved effective when used for detecting Fe3+in living cells and zebrafish. This showed its values in biological aspects.
An OFF–ON–OFF type fluorescent probe based on a naphthalene derivative for Al3+ and F? ions and its biological application
Ren, Yanpeng,Han, Juan,Wang, Yun,Tang, Xu,Wang, Lei,Ni, Liang
, p. 15 - 21 (2018)
A novel fluorescent probe-based naphthalene Schiff, 1-(C2-glucosyl-ylimino-methyl)-naphthalene-2-ol (L) was synthesized by coupling d-glucosamine hydrochloride with 2-hydroxy-1-naphthaldehyde. It exhibited excellent selectivity and highly sensitivity for Al3+ in ethanol with a strong fluorescence response, while other common metal ions such as Pb2+, Mg2+, Cu2+, Co2+, Ni2+, Cd2+, Fe2+, Mn2+, Hg2+, Li+, Na+, K+, Fe3+, Cr3+, Zn2+, Ag+, Ba2+ and Ca2+ did not cause the same fluorescence response. The probe selectively bound Al3+ with a binding constant (Ka) of 5.748?×?103?M?1 and a lowest detection limit (LOD) of 4.08?nM. Moreover, the study found that the fluorescence of the L???Al3+ complex could be quenched after addition of F? in the same medium, while other anions, including Cl?, Br?, I?, NO2 ?, NO3 ?, ClO4 ?, CO3 2?, HCO3 ?, SO4 2?, HSO4 ?, CH3COO?, PO4 3?, HPO4 2?, S2? and S2O3 2? had nearly no influence on probe behaviour. Binding of the [L???Al3+] complex to a F? anion was established by different fluorescence titration studies, with a detection limit of 3.2?nM in ethanol. The fluorescent probe was also successfully applied in the imaging detection of Al3+ and F? in living cells.
Phosphine-catalyzed sequential (2+3)/(2+4) annulation of γ-vinyl allenoates: Access to the synthesis of chromeno[4,3-: B] pyrroles
Huang, You,Li, Xiaohu
supporting information, p. 9934 - 9937 (2021/10/12)
A phosphine-catalyzed cascade (2+3)/(2+4) cyclization reaction of γ-vinyl allenoates with aldimine esters has been developed to provide a series of chromeno[4,3-b]pyrrole derivatives that contain three contiguous stereogenic centers. The method gives a good yield, excellent chemoselectivity and diastereoselectivity under mild conditions.
Cu/Ag mediated peroxide-free synthesis of benzoylated naphthol derivatives
Prasanna Kumari, Subramaniyan,Suresh, Pavithira,Muthukumar, Vijayashree,Selva Ganesan, Subramaniapillai
, (2020/10/13)
A peroxide-free methodology was developed for the synthesis of benzoylated naphthol/phenol derivatives through oxidative deamination reaction performed under aerobic reaction conditions. A synergistic combination of Cu(OTf)2 and Ag2O was used to convert the aminonaphthols and aminophenols to the corresponding benzoylated derivatives. The definite role of atmospheric oxygen to assist the reaction was proved by performing the reaction in the argon atmosphere.
