A simple, mild and high efficient procedure for one pot three component synthesis of 2-amino 4-H chromene derivatives was studied. The reaction was performed in water using aryl aldehydes, malononitrile and resorcinol, phloroglucinol or naphthole in the presence of N-methyl D-glucamine (Meglumine) as a green high efficient catalyst. The reaction was studied in thermal, microwave (MW) and ultras...

China's urbanization will influence the future world economic development. China's s urbanization rate is from 10.6% in1949 to 53.73% in 2013, and the research center of the experts predict that China's urbanization rate will reach 60% in 2020.The characteristic of China's urbanization is the coordinated development of four modernizations, which includes informatization, industrialization, urba...

concerns about environmental issues have revealed the necessity of developing changes in the field of consumption and production. Introducing green products as a substitution to common products in the market, which harm to human health and environment and also enriching the culture of green consumption in the society and recognizing effective factors can be solutions for environmental prob...

The number of consumers concerned about the environment is growing. Although the promotion of green products is recognized as a basic method for solving the waste crisis and improving the environment, resources for producing or serving green products are relatively limited, causing inconveniences and elevated prices for the consumer. Therefore, it becomes significant that those customers who ar...