scholarly journals Retracted: Green Chemistry Approach for Efficient Synthesis of Schiff Bases of Isatin Derivatives and Evaluation of Their Antibacterial Activities

2015 ◽  
Vol 2015 ◽  
pp. 1-1
Keyword(s):  
Green Chemistry ◽  
Schiff Bases ◽  
Antibacterial Activities ◽  
Efficient Synthesis ◽  
Isatin Derivatives

scholarly journals Green Chemistry Approach for Efficient Synthesis of Schiff Bases of Isatin Derivatives and Evaluation of Their Antibacterial Activities

2013 ◽  
Vol 2013 ◽  
pp. 1-5 ◽  
Author(s):  
Jnyanaranjan Panda ◽  
V. Jagannath Patro ◽  
Biswa Mohan Sahoo ◽  
Jitendriya Mishra
Keyword(s):  
Green Chemistry ◽  
Schiff Bases ◽  
Reaction Times ◽  
Antibacterial Activities ◽  
Primary Amines ◽  
Microwave Assisted Synthesis ◽  
Azomethine Group ◽  
Microwave Assisted ◽  
Isatin Derivatives

Microwave-assisted organic synthesis, a green chemistry approach, is nowadays widely used in the drug synthesis. Microwave-assisted synthesis improves both throughput and turnaround time for medicinal chemists by offering the benefits of drastically reduced reaction times, increased yields, and pure products. Schiff bases are the important class of organic compounds due to their flexibility, and structural diversities due to the presence of azomethine group which is helpful for elucidating the mechanism of transformation and rasemination reaction in biological system. This novel compound could also act as valuable ligands for the development of new chemical entities. In the present work, some Schiff bases of Isatin derivatives was synthesized using microwave heating method. Schiff base of Isatin were synthesized by condensation of the keto group of Isatin with different aromatic primary amines. They were characterized by means of spectral data and subsequently subjected to the in vitro antibacterial activities against gram positive and gram negative strains of microbes. It was observed that the compound with electron withdrawing substituents exhibited good antibacterial activities against almost all the micro organisms.

scholarly journals Microwave-assisted Efficient Synthesis of Isatins and spiro-Thiadiazolines under Green Chemistry Protocol

2010 ◽  
Vol 2 (2) ◽  
pp. 322-329 ◽  
Author(s):  
M. M. Hossain ◽  
M. A. Foysal ◽  
M. Mahabub ◽  
Al- Amin
Keyword(s):  
Schiff Base ◽  
Green Chemistry ◽  
Schiff Bases ◽  
Aromatic Amines ◽  
Electrophilic Aromatic Substitution ◽  
Aromatic Substitution ◽  
Efficient Synthesis ◽  
Microwave Assisted ◽  
Primary Aromatic Amines ◽  
Mw Irradiation

MW-assisted treatment of oximinoacetanilides obtained from substituted primary aromatic amines was carried out in conc. H2SO4 medium for 5-10 sec to give cyclic amides (isatins) through intramolecular cyclization by means of electrophilic aromatic substitution. Isatins reacted with thiosemicarbazide under MW-condition gave the corresponding Schiff-bases. The Schiff-bases undergo cyclization in presence of minimal Ac2O under MW-irradiation for 3-4 min to give the spiro-thiadiazoline acetyl derivatives in excellent yield. Keywords:  Microwave-synthesis; Isatins; Schiff-base; spiro-Thiadiazoline; Green chemistry. © 2010 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved.  DOI: 10.3329/jsr.v2i2.3731               J. Sci. Res. 2 (2), 322-329 (2010)  

scholarly journals An efficient synthesis and spectroscopic characterization of Schiff bases containing 9,10-anthracenedione moiety

2013 ◽  
Vol 78 (4) ◽  
pp. 477-482
Author(s):  
Ghulam Fareed ◽  
Ali Versiani ◽  
Nighat Afza ◽  
Nazia Fareed ◽  
Irfan Ali ◽  
...  
Keyword(s):  
Green Chemistry ◽  
Schiff Bases ◽  
1H Nmr ◽  
13C Nmr ◽  
Room Temperature ◽  
Spectroscopic Characterization ◽  
Efficient Synthesis ◽  
Tungstosilicic Acid ◽  
Solvent Free Conditions

A new method has been developed for the synthesis of novel Schiff bases containg anthraquinone moiety using dodeca-Tungstosilicic acid/P2O5 under solvent free conditions at room temperature. The reaction was completed in 1-3 minutes with excellent yields. This method was found to be more efficient, easy and hazardous free for the synthesis of azomethines. The development of these type of methadologies in synthetic chemistry may contribute to green chemistry. The structures of synthesized novel Schiff bases was elucidated using 1H-NMR, 13C-NMR, LCMS, FTIR and CHN analysis.

Efficient Synthesis and Antibacterial Activities of Some Novel 1,2,3-Triazoles Prepared from Propargylic Alcohols and Benzyl Azides

2014 ◽  
Vol 51 (5) ◽  
pp. 1298-1305 ◽  
Author(s):  
Rahman Hosseinzadeh ◽  
Mohammadreza Khadem Abolfazli ◽  
Mojtaba Mohseni ◽  
Maryam Mohadjerani ◽  
Zahra Lasemi
Keyword(s):  
Antibacterial Activities ◽  
Efficient Synthesis ◽  
Propargylic Alcohols

Highly Efficient Synthesis of New 3,5-Substituted (Isoxazolines) and 2,3,5-Trisubstituted (Pyrazolines) Mediated by Chloramin-T and Their Evaluation of Antioxidant and Antibacterial Activities

2020 ◽  
Vol 46 (5) ◽  
pp. 814-821
Author(s):  
Ebraheem Abdu Musad ◽  
Abdullah Mohammed Al Dawsari ◽  
Zaki Eldin Ali Abdalla ◽  
Kakul Husain ◽  
Razaz Saeed Saeed Al Sharabi ◽  
...  
Keyword(s):  
Antibacterial Activities ◽  
Efficient Synthesis ◽  
Highly Efficient
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