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An efficient synthesis of bis(indolyl) methanes and N, N'-alkylidene bisamides by silzic under solvent free conditions
* 1 , 2 , 2
1  Photochemistry Department, National Research Centre, Dokki, Cairo, Egypt
2  Chemistry Department, Faculty of Science, Mansoura University, 35516-Mansoura, Egypt


An operationally simple and green method for the synthesis of a wide range of bis(indolyl)methanes, and N,N'-alkylidene bisamides  under mild conditions, with excellent yields using silzic, has been developed. This improved method furnishes in good yields bis(indolyl)methanes derivatives starting from indole and  aldehydes, or ketones, and N,N'-alkylidene bisamides derivatives starting from acetamide and aldehydes. the catalytic system was reused up for three times with The same efficiency

Keywords: bis(indolyl)methanes, N,N'-alkylidene bisamides, mild conditions, silzic