Alkoxylation process using dipyridinium catalysts

Abstract

Alkoxylations are performed by reacting a cyclic oxide with a starter in the presence of certain dipyridinium catalysts. The dipyridinium catalysts are highly active and effective in such small quantities that it is often unnecessary to remove catalyst residues from the product. The dipyridinium catalysts are very effective in alkoxylating even low molecular weight starters such as glycerol and sorbitol.

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