نتایج جستجو برای: indole derivatives

تعداد نتایج: 114196  

Journal: :Chemical communications 2014
Lei Yang Yuanhong Ma Feijie Song Jingsong You

Highly efficient approaches to obtain structurally diverse fluorinated indole derivatives have been realized through the Ag-catalyzed one-pot cyclization/fluorination of 2-alkynylanilines in the presence of NFSI or Selectfluor.

2013
Uday Kumar

A novel synthetic methodology for the synthesis of Bis(indolyl)methanes by using catalytic amount of ferric triflate was described Introduction Bis(indolyl)methanes consists two substituted indole units in the molecule. Bis indole derivatives are reported to exhibit a wide spectrum of pharmacological activities such as cytotoxic, antitumor antimicrobial [1] and antiactivities. [2] For the past ...

Journal: :Chemical communications 2007
Yonghua Ling Wei Wang Angel E Kaifer

The dicationic guest 2,7-dimethyldiazaphenanthrenium forms a fluorescent inclusion complex with the cucurbit[8]uril host, which can be used to effectively bind and detect indole derivatives, such as serotonin and tryptophan.

2014
Eric N. Jacobsen Song Lin

The Harvard community has made this article openly available. Please share how this access benefits you. Your story matters. opening of episulfonium ions with indole derivatives by means of stabilizing non-covalent interactions.

Macchindra Tambe Somnath Gholap, Umesh Deshmukh

An efficient synthesis of some novel coumarin derivatives via 1, 4- Michael addition of indole to coumarin chalcones catalyzed by cellulose sulphonic acid (CSA) under solvent free conditions is described. The corresponding Michael addition products were obtained in good to excellent yield. The synthesized compounds were screened for their antibacterial activity against E. coli, S. aureus and an...

Macchindra Tambe Somnath Gholap, Umesh Deshmukh

An efficient synthesis of some novel coumarin derivatives via 1, 4- Michael addition of indole to coumarin chalcones catalyzed by cellulose sulphonic acid (CSA) under solvent free conditions is described. The corresponding Michael addition products were obtained in good to excellent yield. The synthesized compounds were screened for their antibacterial activity against E. coli, S. aureus and an...

Journal: :ChemistrySelect 2022

Text for Table of Contents: 6-Indolyldihydropyridinones and 5-indolylmethylenebutyrolactams were prepared from homoallyl amine derivatives resulting the diastereoselective indium-promoted allylation with allyl bromide ethyl 2-(bromomethyl)acrylate, respectively, N-tert-butanesulfinyl imines derived indole-2 3- carbaldehydes.

2013
Rachna Pandey K V Swamy Madhukar B Khetmalas

A variety of intercellular signal molecules, such as, the most studied N-acyl-homoserinelactones (AHLs) in Gram-negative bacteria, autoinducer (AI-2) in both Gram-negative and Gram-positive bacteria, and signal peptides in Gram-positive bacteria, have been discovered over the last 20 years. Although it has been known for over 100 years that many bacteria produce indole, the real biological role...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2014
Manal Al-Najdawi Yusuf Al-Hiari Tariq Al-Qirim Ghassan Shattat Mohammad Al-Zweri Ghassan Abu Sheikha

Five novel derivatives of N-(9,10-dihydro-9,10-dioxoanthracenyl)-1H-indole-2-carboxamide were synthesized and their lipid-lowering effects studied in hyperlipidemic rats. Fusion of the anthraquinone derivatives at high temperature with 5-indole-2-carbonyl chloride, followed by recrystallization from chloroform/methanol gave the desired compounds in excellent yields. Compounds 1 to 5 at a non-to...

2009
Sham M Sondhi Monica Dinodia Shubhi Jain Ashok Kumar

A number of bis Schiff′s bases 3a-d have been synthesized by condensation of 2,4,8,10 tetraoxaspiro[5,5]undecane 3,9dipropanamine 1 with furfural, indole-3-aldehyde, 2-acetylpyridine, 4-acetylpyridine and 5a-c by condensation of 1,4-bis (3-aminopropyl) piperazine 4 with indole-3-aldehyde, 2-acetylpyridine, 4-acetylpyridine, in high yields by using microwave irradiation. Bis hydrazone derivative...

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