申请人:Hagadorn John R.
公开号:US20110112304A1
公开(公告)日:2011-05-12
This invention relates to a carbene complex of metal salt represented by the formula:
[T−M(R)
c
]
n
wherein, R is a monoanionic group; c is 1 or 2; M is a Li or Mg; T is a cyclic carbene ligand; and n is selected from the group of integers comprising 1 to 24 wherein the complex has 50% or less decomposition when stored in 0.01 molar benzene at 23° C. for a period of 1 hour. This invention also relates to transition-metal-carbene complexes prepared from such carbene complexes of metal salts, where the transition-metal-carbene complex is represented by the formula: [M*(T)(L
0
)
q
(L
1−
)
s
(L
2−
)
t
]
g
, where M* is a transition metal from Group 6, 7, 8, 9, 10, 11 or 12, T is a cyclic carbene ligand, L° is a neutral ligand, L
1−
is a monoanionic ligand, L
2−
is a dianionic ligand, q is 0, 1, 2, 3 or 4, s is 0, 1, 2, 3, or 4, t is 0, 1, 2, 3, or 4, g is the overall charge of the molecule. The transition-metal-carbene complexes may be used for synthesis reactions, including metathesis of olefins.
本发明涉及一种由以下式表示的金属盐的卡宾配合物:[T−M(R)c]n其中,R是单负离子基团;c为1或2;M为Li或Mg;T为环状卡宾配体;n选自包括1至24的整数组中,其中该配合物在23℃下以0.01摩尔苯存放1小时时分解度为50%或更低。本发明还涉及从这种金属盐的卡宾配合物制备的过渡金属卡宾配合物,其中过渡金属卡宾配合物由以下式表示:[M*(T)(L0)q(L1−)s(L2−)t]g,其中M*为6、7、8、9、10、11或12族的过渡金属,T为环状卡宾配体,L°为中性配体,L1−为单负离子配体,L2−为二负离子配体,q为0、1、2、3或4,s为0、1、2、3或4,t为0、1、2、3或4,g为分子的总电荷。这些过渡金属卡宾配合物可用于合成反应,包括烯烃的交换反应。