Process for the preparation of high purity norbornene alkanols and derivatives thereof

摘要

A process for the preparation of a variety of high purity norbornene alkanol monomers and their derivatives is disclosed and claimed. Specifically, a process for the preparation of industrial scale high purity norbornene methanol and its silyl ether derivative is disclosed and claimed. The high purity monomers prepared in accordance with the process of this invention are useful in a variety of applications including but not limited to the preparation of high quality and high purity polynorbornenes having utility in a variety of electronic applications, among various other applications.

主权项

1. A process for the preparation of norbornene methanol of formula (IB): comprising: reacting cyclopentadiene with allyl acetate, without any solvent, at a temperature of from about 130° C. to about 260° C. for a sufficient period of time to form norbornene methyl acetate of formula (IIIB): distilling so formed norbornene methyl acetate of formula (IIIB); and subjecting said distilled norbornene methyl acetate (IIIB) to trans-esterification reaction in the presence of methanol and a catalyst at a temperature of from about 40° C. to about 50° C. to form norbornene methanol (IB) of purity of at least 99 percent, which is essentially free of norbornane methanol.