Transformation of the bis(trimethylsilyl)methyl into a β-diketinimato ligand; the X-ray structure of [Li(L′L′)]<sub>2</sub>, SnCl(Me)<sub>2</sub>(L′L′) and SnCl(Me)<sub>2</sub>(LL), [L′L′= N(R)C(Ph)C(H)C(Ph)NR, LL = N(H)C(Ph)C(H)C(Ph)NH, R = SiMe<sub>3</sub>)
作者:Peter B. Hitchcock、Michael F. Lappert、Dian-Sheng Liu
DOI:10.1039/c39940001699
日期:——
The reaction of MCHR2with ArCN yielded [[graphic omitted]â²)]2[R = SiMe3; M = Li and Lâ²Lâ²= N(R)C(Ar)C(H)C(Ar)NR (Ar = Ph 1a or C6H4Me-4 1b) or M = K and Ar = Ph 1c]; 1a or 1c was converted into CH2(Lâ²Lâ²-C,Câ²)22a, Lâ²Lâ²H 2c and S[graphic omitted]â²)3a by treatment with CH2Br2, (CH2Br)2 or H2O, and SnCl2Me2 or SnClMe3, respectively; and 3a upon hydrolysis gave S[graphic omitted])3b[LL = N(H)C(Ph)C(H)C(Ph)NH], X-ray data being provided for 1a, 3a and 3b.
MCHR2 与 ArCN 反应生成 [[graphic omitted]â²)]2[R = SiMe3; M = Li 和 Lâ²Lâ²= N(R)C(Ar)C(H)C(Ar)NR (Ar = Ph 1a 或 C6H4Me-4 1b) 或 M = K 和 Ar = Ph 1c];1a 或 1c 经 CH2Br2、(CH2Br)2 或 H2O 以及 SnCl2Me2 或 SnClMe3 处理后分别转化为 CH2(Lâ²Lâ²-C,Câ²)22a、Lâ²Lâ²H 2c 和 S[图略]â²)3a;3a 经水解后得到 S[图略])3b[LL=N(H)C(Ph)C(H)C(Ph)NH],提供了 1a、3a 和 3b 的 X 射线数据。
Reactions of M[CH(SiMe3)2] (M = Na or K) with PhCN, and related chemistry
作者:Peter B. Hitchcock、Michael F. Lappert、Rafa?l Sablong
DOI:10.1039/b601881e
日期:——
the following ligands: the 1-azaallyl [N(R)C(Ph)C(H)R]- ([triple bond]L-), the 1,3-diazaallyl([triple bond]LL'-) and the isomeric beta-diketiminate [N(R)C(Ph)]}2CH]- ( identical with LL-) have been prepared (R = SiMe(3)). These are the crystalline compounds H(LL) (2), Na(LL) (3), [Na(LL)(thf)2] (4), Na(L) (6), [Na(mu-LL')]8 (7), [K(mu-L)(eta6-C6H6)]2 (8), [K(mu-LL')(thf)]2 (9), [K(thf)2(mu-LL)](infinity)
Metal β-diketiminates revisited: ansa-CH2-bridged bis(β-diketiminate)s of lithium and aluminium having diverse structures
作者:Laurence Bourget-Merle、Peter B. Hitchcock、Michael F. Lappert
DOI:10.1016/j.jorganchem.2004.05.042
日期:2004.11
ligands [N(R 1 )C(R 2 )} 2 CH] (R 1 = SiMe 3 = R and R 2 = Ph; or R 1 = C6H3Pri2 -2,6 and R 2 = Me). The syntheses of the β-diketimines H[N(R)C(Ar)} 2 CH] 1 (Ar = Ph) and 2 (Ar = C6H 4 Me-4) and the ansa -CH 2 -bridged bis(β-diketimine)s 3 (Ar = Ph) and 4 (Ar = C6H 4 Me-4) are reported. Thus, from the appropriate compound Li[N(R)C(Ar)} 2 CH] and H2 O, (CH 2 Br) 2 or CH 2 Br 2 the product
摘要 简要回顾了金属 β-二酮亚胺基配体与金属的结合模式,特别参考了我们之前使用配体 [N(R 1 )C(R 2 )} 2 CH] (R 1 = SiMe 3 = R 和 R 2 = Ph;或 R 1 = C 6 H 3 Pr i 2 -2,6 和 R 2 = Me)。β-二酮亚胺 H[N(R)C(Ar)} 2 CH] 1 (Ar = Ph) 和 2 (Ar = C 6 H 4 Me-4) 和 ansa -CH 2 -桥接双的合成报道了(β-二酮亚胺)s 3 (Ar = Ph) 和 4 (Ar = C 6 H 4 Me-4)。因此,由合适的化合物Li[N(R)C(Ar)} 2 CH]和H 2 O、(CH 2 Br) 2 或CH 2 Br 2 得到的产物是2、3或4。化合物1由K[N(R)C(Ph)} 2 CH]和(CH 2 Br) 2 制备。3 或 4 中的每一个与 LiBu n 令人惊讶地产生双环二锂化合物