发明名称 CATALYSTS AND METHODS FOR POLYMER SYNTHESIS
摘要 The present invention provides oligomeric metal complexes having more than one metal center and methods of using such complexes. The provided metal complexes are useful in the copolymerization of carbon dioxide and epoxides.
申请公布号 US2014171617(A1) 申请公布日期 2014.06.19
申请号 US201214237447 申请日期 2012.08.08
申请人 Farmer Jay J. 发明人 Farmer Jay J.
分类号 C07F15/06;C08G64/34 主分类号 C07F15/06
代理机构 代理人
主权项 1. An oligomeric complex having the structure: wherein: each M is independently a metal atom; eachis independently a multidentate ligand; each linker is independently an optionally substituted C2-30 aliphatic group wherein one or more carbons are optionally and independently replaced by —Cy-, —NRy—, —N(Ry)C(O)—, —C(O)N(Ry)—, —N(Ry)C(O)O—, —OC(O)N(Ry)—, —N(Ry)C(O) N(Ry)—, —OC(O)O—, —O—, —C(O)—, —OC(O)—, —C(O)O—, —S—, —Si(Ry)2—, —SO—, —SO2—, —C(═S)—, —C(═NRy)—, or —N═N—, wherein: each —Cy- is independently an optionally substituted 3-8 membered bivalent, saturated, partially unsaturated, or aryl ring having 0-4 heteroatoms independently selected from nitrogen, oxygen, or sulfur, or an optionally substituted 8-12 membered bivalent saturated, partially unsaturated, or aryl bicyclic ring having 0-5 heteroatoms independently selected from nitrogen, oxygen, or sulfur; andeach Ry is independently —H, or an optionally substituted radical selected from the group consisting of C1-6 aliphatic, phenyl, a 3-7 membered saturated or partially unsaturated carbocyclic ring, a 3-7 membered saturated or partially unsaturated monocyclic heterocyclic ring having 1-2 heteroatoms independently selected from nitrogen, oxygen, or sulfur, a 5-6 membered heteroaryl ring having 1-3 heteroatoms independently selected from nitrogen, oxygen, or sulfur, and 8- to 10-membered aryl; and n is from 1 to 50; wherein the oligomeric complex is substituted with one or more activating groups ; where is a linking moiety covalently coupled to the ligand system, m is an integer from 1 to 4 representing the number of Z groups present on an individual linker moiety; and each Z is independently an activating functional group; and wherein the repeating units of n are optionally joined to form a cyclic oligomeric complex.
地址 Ithaca NY US