7- and 8-membered oxasilacycloalkanes—I : Preparation

Abstract Some new α-trimethylsiloxy-ω-methyl(ethoxy)silyl substituted alkanes of the formula (CH 3 ) 3 SiO(CH 2 ) n -Si(CH 3 ) x (OC 2 H 5 ) 3-x (x=0, 1, 2; n=5, 6) were synthesized. These compounds are stable and can undergo base catalysed decomposition producing 1-oxa-2-sila-2,2-disubstituted cycloalkanes of the formulae (C 2 H 5 O) 2-x (CH 3 ) x Si(CH 2 ) n O (x = 0, 1, 2; n = 5, 6).