申请人:ExxonMobil Chemical Patents Inc.
公开号:US07910783B2
公开(公告)日:2011-03-22
A process for preparing a chelating ligand of the formula (II) from a chelating ligand of the formula (I) via an sp2-sp2 or sp2-sp3 coupling reaction with an organometallic compound of the formula (III).
wherein B is a bridging group that is bonded to L1 and L2 in formula (I) and to L3 and L4 in formula (II); L1 is a substituted monocyclic or polycyclic ligand that comprises at least one chlorine, bromine, iodine, or sulfonate substituent, directly bonded to an sp2 carbon atom of the ring structure of the ligand; L2 is a monoanionic ligand; or L2 may, independently, be defined as L1; L3 is the same group as L1, but said at least one chlorine, bromine, iodine, or sulfonate substituent is replaced with a hydrocarbyl, substituted hydrocarbyl, halocarbyl, or substituted halocarbyl fragment; L4 is the same group as L2, though, when L2 is defined as L1, L4 may be the same as L3 or L1; R1 is a hydrocarbyl, substituted hydrocarbyl, halocarbyl, or substituted halocarbyl; M1 is an element of group 1, 2, 12, 13 or 14 of the Periodic Table of the Elements; each X2, if present, is selected independently from the group consisting of halogen atoms, the hydroxyl group, alkoxy groups, aryloxy groups, mesylate, tosylate and triflate; r is 1, 2 or 3, and t is 0, 1 or 2, where r+t corresponds to the oxidation number of M1.
一种从式(I)的螯合配体通过与式(III)的有机金属化合物进行sp2-sp2或sp2-sp3偶联反应制备式(II)的螯合配体的方法。其中,B是桥连基,与配体式(I)中的L1和L2以及配体式(II)中的L3和L4相结合;L1是含有至少一个氯、溴、碘或磺酸取代基的取代单环或多环配体,直接与配体的环结构上的sp2碳原子键合;L2是单负离子配体;或者L2可以独立地被定义为L1;L3与L1相同,但所述至少一个氯、溴、碘或磺酸取代基被烃基、取代烃基、卤代烃基或取代卤代烃基片段替换;L4与L2相同,但当L2被定义为L1时,L4可以与L3或L1相同;R1是烃基、取代烃基、卤代烃基或取代卤代烃基;M1是元素1、2、12、13或14的周期表元素;每个X2(如果存在)独立地从卤素原子、羟基、烷氧基、芳基氧基、甲磺酸盐、对甲苯磺酸盐和三氟甲烷磺酸盐组中选择;r为1、2或3,t为0、1或2,其中r+t对应于M1的氧化数。