A facile one-pot method to synthesise 2-alkylated indole and 2,2′-bis(indolyl)methane derivatives using ketones as electrophiles and their anion sensing ability

摘要: Indole derivatives are of great importance because their biological activity and application in technology. This study explores the synthesis 2-alkylated indoles 2,2′-bis(indolyl)methanes, anion sensing. The a wide range some which cannot be synthesized by previously reported methods, was for first time accomplished employing dipole exchange indole ring towards electrophilic substitution. Some exhibited selective recognition sensing ability F− HSO4− anions through naked-eye detectable color changes. details were also evaluated using UV-Vis spectroscopy 1H NMR titration techniques.