Synthesis of borasiloxane-based macrocycles by multicomponent condensation reactions in solution or in a bail mill

摘要

Large macrocycles containing imine and borasiloxane links are obtained in polycondensation reactions of 4-formylbenzeneboronic acid, t-Bu_2Si(OH)_2, and diamines. The multicomponent reactions can be performed in solution or - advantageously - by mechanochemical syntheses in a ball mill.