Literature DB >> 16956202

Synthesis and fluorescent properties of a new class of heterocycles of isoindole fused imidazoles with phenolic subunits.

Suven Das1, Roland Fröhlich, Animesh Pramanik.   

Abstract

A new class of heterocycles of isoindole fused imidazoles with phenolic subunits has been readily synthesized by a two-step one-pot reaction. In aprotic solvent they show high fluorescent properties (Phi(F) up to 0.93), but in protic polar solvent fluorescent intensity decreases. They show green fluorescence in weak acidic medium such as acetic acid but lack emission in basic medium. The compounds can also stain human squamous epithelium cells.

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Year:  2006        PMID： 16956202     DOI： 10.1021/ol061520n

Source DB:  PubMed          Journal:  Org Lett        ISSN： 1523-7052            Impact factor:   6.005


  6 in total

1.  Novel synthesis of a series of spiro 1,3-indanedione-fused dihydropyridines through the condensation of a tetrone with N-aryl/alkylenamines in presence of solid support silica sulfuric acid.

Authors:  Ashis Kundu; Animesh Pramanik
Journal:  Mol Divers       Date:  2015-03-24       Impact factor: 2.943

2.  Diastereo- and regioselective petasis aryl and allyl boration of ninhydrins towards synthesis of functionalized indene-diones and dihydrobenzoindeno-oxazin-ones.

Authors:  Ayon Sengupta; Suvendu Maity; Pinaki Saha; Prasanta Ghosh; Sonali Rudra; Chhanda Mukhopadhyay
Journal:  Mol Divers       Date:  2022-08-01       Impact factor: 3.364

3.  Turn on Fluorescence Sensing of Zn2+ Based on Fused Isoindole-Imidazole Scaffold.

Authors:  Sutapa Sahu; Yeasin Sikdar; Riya Bag; Javier Cerezo; José P Cerón-Carrasco; Sanchita Goswami
Journal:  Molecules       Date:  2022-04-30       Impact factor: 4.927

4.  Synthesis of multi-functionalized benzofurans through the condensation of ninhydrin and phenols using SSA as a recyclable heterogeneous acid catalyst.

Authors:  Ashis Kundu; Animesh Pramanik
Journal:  Mol Divers       Date:  2016-02-01       Impact factor: 2.943

5.  CuI nanoparticle-catalyzed synthesis of tetracyclic benzo[e]benzo[4,5]imidazo[1,2-c][1,3]thiazin-6-imine heterocycles by SNAr-type C-S, C-N bond formation from isothiocyanatobenzenes and benzimidazoles.

Authors:  Xiaolong Guo; Luyao Wang; Jing Hu; Mengmeng Zhang
Journal:  RSC Adv       Date:  2018-06-19       Impact factor: 4.036

6.  Silica sulfuric acid: a reusable solid catalyst for one pot synthesis of densely substituted pyrrole-fused isocoumarins under solvent-free conditions.

Authors:  Sudipta Pathak; Kamalesh Debnath; Animesh Pramanik
Journal:  Beilstein J Org Chem       Date:  2013-11-04       Impact factor: 2.883
  6 in total

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