Microwave-Assisted Synthesis and Biological Activities of Some Chromene Derivatives
Journal Title: International Journal of Science and Research (IJSR) - Year 2015, Vol 4, Issue 4
Abstract
A series of 4H-chromene derivatives were synthesized under microwave irradiation, a comparative study was done depending upon yield and time. The present study reveals the synthesis of chromene derivative in which pyrazine-2-ol was reacted with chloroethylacetate in presence of K2CO3 to form an intermediate which was further treated with hydrazine hydrate to form hydrazino derivative of pyrazine-2-ol and finally the intermediate is condensed by substituted chromene derivatives to form final compound conventionally as well as by using microwave irradiation technique. The synthesized compounds were then characterized by using FT-IR, 1H-NMR and Mass spectrophotometer. All the compounds were screened for their anti-microbial activity, anti-oxidant and anti-inflammatory activity. It was found that the derivatives showed moderate activity as compared to standard.
Block Printing with Dye Concentrate of Butea Monosperma Flowers with Gum Extracted from Waste Mango Kernel and Cassia Tora Seeds on Cotton Fabric
Natural dyes and natural thickening agents appear to be ideal choice. This is because natural dyes and thickening agents have better biodegradability and higher compatibility with environment. The block printing of cotto...
Experimental Study of the Inhibition Efficiency of 3; 5 Substituted Piperidin-4-ones
Experimental Study of the Inhibition Efficiency of 3; 5 Substituted Piperidin-4-ones
Controller Area Network for Monitoring and Controlling the Industrial Parameters Using Bluetooth Communication
Various parameters in the industries can be monitored and controlled using CAN bus network integrated with Bluetooth Communication. Monitoring and controlling the industrial parameters involve a large amount of man power...
Value-Driven Approach for Project Success and Change Management in Malaysian Institutions of Higher Learning (IHL)
As a project is a lifeline and strategic asset to any organization, identifying the critical success factors (CSFs) for the success of projects is vital in project management. This conceptual paper provides the literatur...
Study of Plasma Homocysteine Level in Coronary Heart Disease Patients and Compare with Control
ABSTRACT – The study was conducted on 50 patients of coronary heart disease and 50 persons are healthy subjects between the age group 25-70 years of both sex. Homocysteine may increase cellular oxidative stress in which...