New sulfur-containing spiro orthocarbonates (SOCs) were prepared by using d
ichlorodiphenoxymethane. Mercapto alcohols were employed to yield O,S SOCs,
and O,S diphenoxy intermediates in a one-step procedure. By adopting a two
-step synthesis under basic conditions, a range of sulfur-containing hetero
atom SOCs was produced. Preliminary studies indicate that this methodology
is applicable to different ring sizes.