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Multicomponent One-pot Synthesis of Substituted 4H-pyrimido [2,1-b] [1,3] Benzothiazole Curcumin Derivatives and Their Antimicrobial Evaluation

[ Vol. 15 , Issue. 10 ]

Author(s):

Shikha Agarwal, Dinesh Kr. Agarwal*, Divyani Gandhi, Kshamta Goyal and Pradeep Goyal   Pages 863 - 869 ( 7 )

Abstract:


A novel series of ten substituted 4H-pyrimido [2,1-b] [1,3] benzothiazole curcumin derivatives have been synthesized and evaluated for their antimicrobial activity against Gram positive and Gram negative bacteria viz. Pseudomonas aeruginosa, Staphylococcus aureus, Bacillus cereus and against fungi viz. Alternaria solani, Aspergillus niger, Fusarium culmorum and Rhizopus stolonifer. The mechanism involves condensation of substituted benzaldehyde and curcumin via Knovenegal reaction which further reacts with substituted benzothiazole through Michael addition in the presence of pyridine catalyst using methanol as a solvent. The synthesized compounds were analyzed by elemental and spectral analysis.

Keywords:

Curcumin, benzothiazole, multicomponent reaction, 4H-pyrimido[2, 1-b][1, 3] benzothiazole curcumin, antimicrobial activity, bacteria.

Affiliation:

Synthetic Organic Chemistry Laboratory, Department of Chemistry, MLS University, Udaipur, Department of Pharmocology, PAHER University, Udaipur, Synthetic Organic Chemistry Laboratory, Department of Chemistry, MLS University, Udaipur, Department of Chemistry, University of Rajasthan, Jaipur, Department of Pharmaceutical Chemistry, BN University, Udaipur

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