Due to these biological activities, the synthesis of benzothiazole is a considerable area of current discussion. The classical method involves condensation of o -aminothiophenols with substituted aldehydes 8-14, acyl chlorides, carboxylic acids 15-16 or esters, nitriles 17.
Based on their work on the palladium-catalyzed benzothiazole formation (Scheme 74), 227 the group of Patel could develop a similar copper-catalyzed one-pot synthesis of 2-aminobenzothiazoles (198) from isothiocyanates (199) and amines (200) (Scheme 79). 242 Compared to the palladium-catalyzed version, this copper-catalyzed oxidative coupling tolerates a wider range of substrates.
Green Condensation of o-Aminothiophenol to o-Phenyl-benzothiazole. David Fairchild, Alex Irion, Dominic Russo, Luke Sanders. Abstract. Herein we describe a simple, efficient, and environmentally friendly synthesis of o-arylbenzothiazoles, such as o-phenyl-benzothiazole, under standard ambient temperature and pressure via reaction of o-aminothiophenols with aromatic aldehydes using glycerol as.Benzothiazole. Biologically useful and important scaffold - Dr. Faiyazalam Shaikh Dr. Navin Patel - Academic Paper - Chemistry - Organic Chemistry - Publish your bachelor's or master's thesis, dissertation, term paper or essay.PubMed:Chrysin-benzothiazole conjugates as antioxidant and anticancer agents. PubMed:New synthesis and biological evaluation of benzothiazole derivates as antifungal agents. PubMed:Benzotriazoles and benzothiazoles in human urine from several countries: a perspective on occurrence, biotransformation, and human exposure.
Synthesis, Characterization and Antibacterial Activity o f Substituted Benzothiazole Derivatives. synthesis. The Benzothiazole and Schiff base moieties are crucial functionalities due to their wide. Variety of biological activities and have a wide range of therapeutic properties. Keeping in view the importance of these organic moieties, a new series of 2-aminobenzothiazole containing novel.Read More
Benzothiazole is an aromatic heterocyclic compound with the chemical formula C 7 H 5 NS. It is colorless, slightly viscous liquid. Although the parent compound, benzothiazole is not widely used, many of its derivatives are found in commercial products or in nature. Firefly luciferin can be considered a derivative of benzothiazole. Structure and preparation. Benzothiazoles consist of a 5.Read More
Benzoheterocycles such as benzothiazoles, benzimid azoles and benzoxazoles can serve as unique and versatile scaffolds for experimental drug design. Among the all benzohaterocycles, benzothiazole has considerable place in research area especially in.Read More
Benzotriazole (BTA) is a heterocyclic compound containing three nitrogen atoms, with the chemical formula C 6 H 5 N 3. This aromatic compound is colorless and polar and can be used in various fields. Structure. Benzotriazole features two fused rings. Its five-membered ring can exist in tautomers A and B, and the derivatives of both tautomers, structures C and D also can be produced. Various.Read More
Chapter 3 contains work towards the synthesis of the benzothiazole containing natural product erythrazole A. The first half of the Chapter focuses on the formation of the heterocyclic core, originally attempting to use a biomimetic strategy but switching to an approach utilising the oxidative cyclisation of thioamides. The second half of the Chapter discusses many routes to synthesise and.Read More
Benzothiazoles have played an important role in the field of biochemistry and medicinal chemistry due to their highly pharmaceutical and biological activity. The development of synthetic processes is undoubtedly one of the most significant problems facing researchers. In this review paper, we provided recent advances in the synthesis of benzothiazole compounds related to green chemistry from.Read More
Benzothiazole is a privileged bicyclic ring system. Due to its potent and significant biological activities it has great pharmaceutical importance; hence, synthesis of this compound is of considerable interest. The small and simple benzothiazole nucleus if present in compounds involved in research aimed at evaluating new products that possess interesting biological activities.Read More
Synthesis and characterization of Schiff’s bases derived from 2-amino benzothiazole, 2-amino-6-chloro benzothiazole and 2-amino-6-bromo benzothiazole with o-Vanillin were done in the present work. The synthesized compounds were tested for anti-oxidant activities by DPPH and ABTS assay. All the compounds showed good.Read More
Synthesis of o-Phenyl-benzothiazole from o-Aminothiophenol and Benzaldehyde; 2 g of the previously prepared o-aminothiophenol and 1.695 g of benzaldehyde are charged into a 25 ml Erlenmeyer flask with 15 ml of glycerol. The reaction is heated for one hour. Afterwards, water is added until precipitate no longer fell out of solution; the precipitate is purified via recrystallization in hot.Read More
The electrophilic reactions (nitration, bromination, hydroxymethylation, formylation, acylation) and radical substitution reactions (nitration, arylation) of 2-(2-furyl)benzothiazole have been studied. It was found that all of the reactions occur at position 5 of the furan ring. Only nitration in PPA gave the 5',6-dinitro derivative. Quantum-chemical calculation data for the electron density.Read More