Lineare oligophosphaalkane XIII. Triphosphaalkane mit demPCPCP-donorskelett; liganden für den aufbau von mehrkernkomplexen
作者:David J. Brauer、Sibbele Hietkamp、Herbert Sommer、Othmar Stelzer、Gerhard Müller、M.J. Romão、Carl Krüger
DOI:10.1016/0022-328x(85)80372-7
日期:1985.12
triphosphaalkane Cl2PCH2PClCH2PCl2 (III) is formed as a by-product in the synthesis of Cl2PCH2PCl2 (II). On treating III with MeMgCl or EtOH (in the presence of a base), the methyl or ethoxy derivative (V or VI) may be obtained in satisfactory yields. With Ni(CO)4 or Fe2 (CO)9, V forms trinuclear complexes [(CO)nM]PMe2CH2PMe[M(CO)n]CH2PMe2 [M(CO)n] (X, XIII; M Fe, Ni; n = 4, 3) or binuclear stable six-membered
在合成Cl 2 PCH 2 PCl 2(II)中,副产物三磷烷Cl 2 PCH 2 PClCH 2 PCl 2(III)形成。用MeMgCl或EtOH(在碱存在下)处理III时,可以令人满意的产率获得甲基或乙氧基衍生物(V或VI)。V与Ni(CO)4或Fe 2(CO)9形成三核络合物[(CO)n M] PMe 2 CH 2 PMe [M(CO)n ] CH 2 PMe 2 [M(CO)n ](X ,XIII;MFe,Ni;n= 4,3 )或双核稳定的六元螯合环系统[M(CO)n ]-PMe(CH 2 PMe 2)2 [M(CO)m ](IX,XIV; M = Fe,Ni:n = 4,3:m = 3,2)。过量的Fe 2(CO)9(摩尔比V / Fe 2(CO)9 1/5)分别产生具有FeFe键的XI或簇XII。在这两种情况下,V都将FeFe键与PCP供体连接。