Cobalt catalysts and their use for hydrosilylation and dehydrogenative silylation

摘要

Disclosed herein are cobalt terpyridine complexes containing a single ligand coordinated to the cobalt, and their use as hydrosilylation and/or dehydrogenative silylation and crosslinking catalysts. The cobalt complexes also exhibit adequate air stability for handling and manipulation.

主权项

1. A complex of the Formula: wherein each occurrence of R1-R11 is independently hydrogen, a C1-C18 alkyl, a C1-C18 substituted alkyl, a C5-C18 cycloalkyl, a C5-C18 substituted cycloalkyl, a C6-C18 aryl, a substituted C6-C18 aryl, or an inert substituent wherein one or more of R1-R11, other than hydrogen, optionally contain at least one heteroatom; optionally any two of R1-R11 vicinal to one another, R4-R5, and/or R7-R8 taken together may form a ring being a substituted or unsubstituted, saturated, or unsaturated cyclic structure; and L is —C(R22)2—Si(R23)3 where R22 and R23 are independently hydrogen, a C1-C18 alkyl, a C1-C18 substituted alkyl, a C6-C18 aryl, a substituted C6-C18 aryl, or an inert substituent, and R22 and R23 optionally contain at least one heteroatom.