Reactivity of bis(pyrazol-1-yl)methanes functionalized by 2-hydroxyphenyl and 2-methoxyphenyl on the methine carbon atom with W(CO)5THF
作者:Ke Ding、Cai-Hong Cheng、Yan-Xin Yang、Hai-Bin Song、Liang-Fu Tang
DOI:10.1016/j.jorganchem.2011.08.023
日期:2011.11
derivative W(CO)5(3,5-Me2PzH) (Pz = pyrazol-1-yl). These two fragments were connected together through strong O…H–N and O–H…N hydrogen bonds to form complex L.[W(CO)5(3,5-Me2PzH)]2. The analogous results were observed in the treatment of 2-methoxyphenylbis(pyrazol-1-yl)methane (L3) with W(CO)5THF, which gave product L′.[W(CO)5(PzH)]2 (L′ = 1,2-bis(2-methoxyphenyl)-1,2-bis(pyrazol-1-yl)ethane) as well
已经进行了2-羟基苯基和2-甲氧基苯基双(吡唑-1-基)甲烷以及2-羟基苯基和2-甲氧基苯基双(3,5-二甲基吡唑-1-基)甲烷与W(CO)5 THF的反应。在回流下将2-羟基苯基双(吡唑-1-基)甲烷(L 1)与W(CO)5 THF的四氢呋喃溶液加热得到配合物(L 1)W(CO)4 .L 1,而2-羟基苯基双(pyrazol-1-yl)甲烷(L 1)的类似反应具有W(CO)5 THF的3,5-二甲基吡唑-1-基)甲烷(L 2)导致C sp3- N键断裂,生成1,2-双(2-羟苯基)-1,2-双(3,5-二甲基吡唑-1-基)乙烷(L)和吡唑衍生物W(CO)5(3,5-Me 2PzH)(Pz =吡唑-1-基)。这两个片段通过牢固的O…H – N和O – H…N氢键连接在一起形成复合物L。[W(CO)5(3,5-Me 2 PzH)] 2。在用W(CO)5 THF处理2-甲氧基苯基双(吡唑-1-基)甲烷(L