Novel silicon bisalkoxy complexes with a pseudo-atrane structure. Synthesis and molecular structures of 2,6-di(2-hydroxy(2-adamantyl)) ethylpyridine and 2,6-di(2-oxy(2-adamantylidine))ethylpyridine dimethylsilicon

Abstract

Reaction of 2,6-lutidine with 2 equivalents of nBuLi followed by addition of 2-adamantanone affords the doubly functionalized 2,6-di-(2-oxy (2-adamantylidine))ethylpyridine ( 2a). Reaction of 2a with Me 2SiCl 2 gives the pseudo-pentacoordinate 2,6-di-(2-oxy (2-adamantylidine))-ethylpyridinedimethylsilicon ( 4). The structures of 2a and 4 have been determined by an X-ray diffraction study.