Pt(alkene) complex loses the alkene (ethene or propene) in a consecutive reaction. For [biphen(CH2OPiPr)2}PtEt2], selective deuteration of the CH2O group and the Pt-ethyl group proves that scrambling of deuterium into the iPr methyl groups occurs (by a CH activation/insertion/β-H elimination/reductive elimination sequence) after the β-H elimination and before the loss of ethene, which at 95 °C is almost as
[(COD)PtCl2] 与联苯 (QPiPr)(Q'PiPr) (Q, Q' = O, CH2O) 反应生成顺式-[biphen(QPiPr)(Q'PiPr)}PtCl2]。用联苯(QPiPr)(Q'PiPr) (Q, Q' = O, CH2O)处理反式-[PtCl2(乙烯)(py)]得到反式-[biphen(QPiPr)(Q'PiPr)}PtCl2]对于 Q 或 Q' ≠ O。这些化合物在 [D8] 甲苯中 105 °C 下 24 小时后未观察到反式/顺式异构化。在 Q = Q' = O 的情况下,反式/顺式异构化在室温下发生。对于化合物 cis/trans-[biphen(QPiPr)(Q'PiPr)}PtCl2],其中 Q 或 Q'≠O,确定了固态分子的 X 射线结构。在 Q = O 的情况下, Q' = CH2O 配体的联苯片段中两个桥接 C 原子中较近的距离 Pt 中心仅
Synthese und umlagerungsreaktionen von o-funktionellen phenyllithium- und phenylnatrium derivaten der IVB- und VB-elemente
作者:J. Heinicke、E. Nietzschmann、A. Tzschach
DOI:10.1016/0022-328x(83)80214-9
日期:1983.2
While o-substituted bromobenzene derivatives of the type o-BrC6H4XERn (X O, S; ERn SiMe3 and N-BuLi undergo metal halogen exchange followed by silyl- X å C rearrangement, the corresponding compounds of phosphorus, arsenic or tin are split at the EXbond. o-Metal derivatives o-M1C6H4XERn (X O, NMe; E P, As, Sn) of these elements may be generated, however, by direct reaction with sodium or lithium
当o -BrC 6 H 4 XER n(X = O,S; ER n SiMe 3和N-BuLi类型)的邻位取代溴苯衍生物进行金属卤素交换,然后进行甲硅烷基-XåC重排时,相应的磷,砷或锡处于EX键分裂。ø -金属衍生物ö -M 1 C 6 ħ 4 XER ñ(XO,NME,EP,砷,锡)可以生成这些元素的但是,通过与钠或锂直接反应,它们不稳定,并提供邻羟基和邻羟基。-氨基苯基元素(IV,V)衍生物通过分子内阴离子重排。
Catalyst based on a transition metal complex for polymerization of olefin, and process for polymerization of olefin using the catalyst
申请人:TOSOH CORPORATION
公开号:EP1577314A1
公开(公告)日:2005-09-21
Catalyst for polymerization of an olefin is provided, which comprises (A) a transition metal compound having a carbon-metal bond structure and (B) an activating co-catalyst, or (A) a transition metal compound having a carbon-metal bond structure, (B) an activating cocatalyst and (C) an organometallic compound.