Silicon‐Bridged Macrocycles—Synthesis of Sila‐calixarenes

Abstract

Readily available starting materials can be used to prepare silicon-bridged macrocycles of different ring sizes by deprotonation and reaction with Me2SiCl2. While heterocycles such as furan or thiophene gave sila[14]- and sila[16]phanes, para-(tert-butyl)methoxybenzene afforded the first silacalix-[4]arene 1.