申请人:Voskoboynikov Z. Alexander
公开号:US20070135596A1
公开(公告)日:2007-06-14
A process for preparing a chelating ligand of the formula (II) from a chelating ligand of the formula (I) via an sp
2
-sp
2
or sp
2
-sp
3
coupling reaction with an organometallic compound of the formula (III).
wherein B is a bridging group that is bonded to L
1
and L
2
in formula (I) and to L
3
and L
4
in formula (II); L
1
is a substituted monocyclic or polycyclic ligand that comprises at least one chlorine, bromine, iodine, or sulfonate substituent, directly bonded to an sp
2
carbon atom of the ring structure of the ligand; L
2
is a monoanionic ligand; or L
2
may, independently, be defined as L
1
; L
3
is the same group as L
1
, but said at least one chlorine, bromine, iodine, or sulfonate substituent is replaced with a hydrocarbyl, substituted hydrocarbyl, halocarbyl, or substituted halocarbyl fragment; L
4
is the same group as L
2
, though, when L
2
is defined as L
1
, L
4
may be the same as L
3
or L
1
; R
1
is a hydrocarbyl, substituted hydrocarbyl, halocarbyl, or substituted halocarbyl; M
1
is an element of group 1, 2, 12, 13 or 14 of the Periodic Table of the Elements; each X
2
, 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 M
1
.
从化学配体的公式(I)通过与公式(III)的有机金属化合物进行sp2-sp2或sp2-sp3偶联反应,制备化学配体的公式(II)的方法。其中B是一个桥联基团,与公式(I)中的L1和L2以及公式(II)中的L3和L4结合;L1是一个取代的单环或多环配体,至少包含一个氯、溴、碘或磺酸酯取代基,直接与配体的环结构的sp2碳原子键合;L2是一个单负离子配体;或者L2可以独立地被定义为L1;L3与L1相同,但所述的至少一个氯、溴、碘或磺酸酯取代基被氢化碳基、取代的氢化碳基、卤代碳基或取代的卤代碳基片段所取代;L4与L2相同,但当L2被定义为L1时,L4可以与L3或L1相同;R1是一个氢化碳基、取代的氢化碳基、卤代碳基或取代的卤代碳基;M1是元素周期表第1、2、12、13或14组的元素;每个X2,如果存在,可独立地选择自卤素原子、羟基、烷氧基、芳基氧基、甲磺酸酯、对甲苯磺酸酯和三氟甲磺酸酯组成的群;r为1、2或3,t为0、1或2,其中r+t对应于M1的氧化数。