15018-03-8Relevant articles and documents
A novel switch on and reversible optical sensor as an efficient, selective receptor for Zn(II) ion and its biological application
Budri, Mahantesh,Naik, Ganesh,Patil, Shivaraj,Kadolkar, Prajakta,Gudasi, Kalagouda,Inamdar, Sanjeev
, (2020)
In the present study, a promising optical sensor (TR) was designed, synthesized, characterized and its chemosensing mechanism has been explored through 1H NMR, ESI-MS, UV–Vis absorption and emission spectral studies. This compound exhibits a dr
A highly selective and sensitive turn on optical probe as a promising molecular platform for rapid detection of Zn (II) ion in acetonitrile medium: Experimental and theoretical investigations
Budri, Mahantesh,Kadolkar, Prajakta,Gudasi, Kalagouda,Inamdar, Sanjeev
, p. 346 - 358 (2019)
A highly Zn2+ ion responsive novel cation sensor (L) based on the dual mechanism (ESIPT/ICT) was designed, synthesized and characterized. The sensor L shows great turn on selectivity for Zn2+ ion in 1:1 stoichiometric manner via rapid color change and 5-fold fluorescence enhancement in CH3CN over other interfering cations. The addition of Zn2+ ion to L, triggers the deprotonation of imidolic and hydroxylic protons of L, which in turn shows an enhanced red shift in both UV–Vis and fluorescence spectra of the sensor. The limit of detection and binding constant obtained are well within those reported for Zn2+ ion. The theoretical calculations were correlated with experimental results to understand the sensing mechanism between host guest interactions and L distinguishes Zn2+ from Cd2+. Furthermore, bioimaging studies were undertaken to investigate practical usefulness of L to recognize Zn2+ ion using HeLa cells.
An ESIPT blocked highly ICT based molecular probe to sense Zn (II) ion through turn on optical response: Experimental and theoretical studies
Budri, Mahantesh,Naik, Ganesh,Patil, Shivaraj,Kadolkar, Prajakta,Gudasi, Kalagouda,Inamdar, Sanjeev
, (2020)
A simple and low cost optical sensor (L) is synthesized by the condensation reaction and characterized systematically. Among the various tested metal ions, L selectively interacts with Zn2+ ion by inducing a 17-fold high fluorescence intensity
Synthesis method of 5-tert-butyl-2-methyl hydroxybenzoate
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Paragraph 0031-0059, (2020/09/09)
The invention discloses a synthesis method of methyl 5-tert-butyl-2-hydroxybenzoate, and belongs to the technical field of organic synthesis. The synthesis method comprises the following steps of: S1,taking methyl salicylate and tert-butyl alcohol as raw materials, and preparing a mixture of a compound shown as a formula (I), a compound shown as a formula (II) and a compound shown as a formula (III) under the catalytic action of concentrated sulfuric acid; and S2, carrying out a rearrangement reaction on the mixture prepared in the step S1 under the catalysis of Lewis acid, and carrying out post-treatment to prepare a pure compound shown in the formula (I), namely the 5-tert-butyl-2-methyl hydroxybenzoate. The synthesis method of the 5-tert-butyl-2-methyl hydroxybenzoate is low in production cost, novel in preparation route, simple in equipment and easy for industrial production, and can be widely applied to the field of production of fine chemicals.
