Phosphinimino-amino supported complex: Synthesis, polymerization of ethylene anddearomatisation of pyridine
作者：Xie, HY; Hua, XF; Liu, B; Wu, CJ; Cui, DM
關(guān)鍵字：phosphinimino-amine ligand; Magnesium; Scandium; Ethylene polymerization; Dearomatisation of pyridine
論文來源：期刊
具體來源：http://apps.webofknowledge.com/full_record.do?product=UA&search_mode=GeneralSearch&qid=34&SID=V2hxdX
發(fā)表時(shí)間：2015年
Alkane
elimination reaction of phosphinimino-amine ligand HL (L =
(2,6-Pr-i(2)-C6H3)NC(Me)CHP(Cy-2) N(2,6-Me-2-C6H3)) with (MgBu2)-Bu-n and
Sc(CH2SiMe3)(3)(THF)(2), respectively, can afford the corresponding
phosphinimino-amine supported magnesium monoalkyl complex (LMgBu)-Bu-n(THF) (1)
and scandium dialkyl complex LSc(CH2SiMe3)(2) (2). 2 can initiate the polymerization of ethylene efficiently
under the activation of [Ph3C][B(C6F5)(4)]. Magnesium hydride complex
[LMgH](2) (3) can be easily obtained by the reaction of 1 and
phenylsilane. The hydride species in 3 can conduct the dearomatisation of pyridine to
give dearomatisation product 1,2-dihydropyridide (4). (C) 2015
Elsevier B.V. All rights reserved.