Alkoxylation processes and catalysts therefor

摘要

A process of contacting an alkylene oxide with 2-methoxy-1-propanol (PM1) in the presence of an oligomeric Schiff base metal complex catalyst is disclosed. Further, a process involving contacting an alkylene oxide with an alkyl alcohol using an oligomeric Schiff base metal complex as a catalyst is also disclosed. Additionally, novel compositions which can be used as catalysts in processes involving the contacting of an alkyl alcohol with an alkylene oxide are also disclosed.

主权项

1. A composition comprising:
an achiral tetradentate Schiff-base metal complex, according to formula: wherein each wherein Mt+ is a Group 2-15 metal capable of complexing with a ligand to affect catalysis, wherein t is an integer between 2 and 4; wherein group A is selected from the group consisting of neutral group, bound anionic group, unbound anionic group, and combinations thereof, wherein s is the number of A groups associated with the metal and is an integer between 0 and 2; and wherein said composition is selected from the group consisting of oligomer, polymer, and copolymer.