Patent ID: 9611347
Date: 2017-04-04
CPC Classifications: B01J,C07F,C08F,C08G

Claim:
1. A method for preparing a poly(dicyclopentadiene) polymer, wherein the polymer is greater than 80% syndiotactic, comprising a step of: a) providing a compound of formula I: wherein: R each R two R three R each of R R each R is independently hydrogen or an optionally substituted group selected from C two R groups are optionally taken together with the intervening atoms to form an optionally substituted 3-10 membered, monocyclic or bicyclic, saturated, partially unsaturated, or aryl ring having, in addition to the intervening atoms, 0-4 heteroatoms independently selected from nitrogen, oxygen or sulfur; R R Ar or a compound of formula II: wherein: each of R R each R is independently hydrogen or an optionally substituted group selected from C two R groups are optionally taken together with the intervening atoms to form an optionally substituted 3-10 membered, monocyclic or bicyclic, saturated, partially unsaturated, or aryl ring having, in addition to the intervening atoms, 0-4 heteroatoms independently selected from nitrogen, oxygen or sulfur; R R Ar n is 0-2; and each R or a compound of formula III: wherein: each of R R each R is independently hydrogen or an optionally substituted group selected from C two R groups are optionally taken together with the intervening atoms to form an optionally substituted 3-10 membered, monocyclic or bicyclic, saturated, partially unsaturated, or aryl ring having, in addition to the intervening atoms, 0-4 heteroatoms independently selected from nitrogen, oxygen or sulfur; each R Ar or an optionally substituted group selected from phenyl, a 10-14 membered bicyclic or polycyclic aryl ring, a 5-6 membered monocyclic heteroaryl ring having 1-4 heteroatoms independently selected from nitrogen, oxygen or sulfur, or an 8-14 membered bicyclic or polycyclic heteroaryl ring having 1-5 heteroatoms independently selected from nitrogen, oxygen or sulfur; Ring B is an optionally substituted group selected from phenyl or a 5-6 membered monocyclic heteroaryl ring having 1-4 heteroatoms independently selected from nitrogen, oxygen or sulfur; Ring B′ is an optionally substituted group selected from phenyl, a 10-14 membered bicyclic or tricyclic aryl ring, a 5-6 membered monocyclic heteroaryl ring having 1-4 heteroatoms independently selected from nitrogen, oxygen or sulfur, or an 8-14 membered bicyclic or tricyclic heteroaryl ring having 1-5 heteroatoms independently selected from nitrogen, oxygen or sulfur; each Ring C is independently an optionally substituted group selected from phenyl, a 3-7 membered saturated or partially unsaturated carbocyclic ring, an 6-14 membered bicyclic or tricyclic saturated, partially unsaturated or aryl ring, a 5-6 membered monocyclic heteroaryl ring having 1-4 heteroatoms independently selected from nitrogen, oxygen or sulfur, a 3-7 membered saturated or partially unsaturated heterocyclic ring having 1-3 heteroatoms independently selected from nitrogen, oxygen or sulfur, a 7-10 membered bicyclic saturated or partially unsaturated heterocyclic ring having 1-5 heteroatoms independently selected from nitrogen, oxygen or sulfur, or an 8-14 membered bicyclic or tricyclic heteroaryl ring having 1-5 heteroatoms independently selected from nitrogen, oxygen or sulfur; each R each R each of p and t is independently 0-7; m is 0-3; n is 0-2; and each R