Silacrown ethers: Synthesis of macrocyclic diphenylpolyethyleneglycol mono- and disilanes

Article abstract of DOI:10.1016/S0040-4039(00)60140-5

The synthesis of new mono- and disilacrown ethers ([k]O(l)Si(m): (k,l,m) = (8,3,1); (11,4,1); (16,6,2); (22,8,2)) was achieved by reacting Ph₂SiCl₂ with HO-(CH₂CH₂O)(n)-H (n = 2,3) in the presence of base. Variation of the later revealed that cations could act as templates and thus orient the synthesis towards the mono- or the disilanes.