第一个含锰(II)的较重硫代羧酸盐类似物[L Dip Si(S)OMnL Dep ](4 ; L Dip = CH [C(Me)N(2,6‐ i Pr 2 C 6 H 3)] 2,L Dep = CH [C(Me)N(2,6-Et 2 C 6 H 3)] 2)和[L Dip Ge(S)OMnL Dep ](5)进行了描述。可通过相应硫代羧酸的硅和锗类似物的反应来获得它们[L DipE(S)OH](E = Si,Ge)和β-二酮亚胺基(nacnac)氢化锰(II)前体[(L Dep Mn)2(μ-H)2 ](3)。第一锰nacnac氢化物3已经制备溴化锰的反应[(L德普Mn)为2(μ-溴)2 ](2用KBEt)3 H.化合物4和5代表第一种具有SiS和GeS官能度的过渡金属重硫代羧酸盐。所有新化合物都是顺磁性的,并通过元素分析,红外光谱,MS(EI)和单晶X射线衍射分析进行了表征。由于N→E(E
Silicon Analogues of Carboxylic Acids: Synthesis of Isolable Silanoic Acids by Donor-Acceptor Stabilization
作者:Yun Xiong、Shenglai Yao、Matthias Driess
DOI:10.1002/anie.201002970
日期:2010.9.3
cope with instability? Storable complexes of silacarboxylic acids were prepared through addition of H2S and H2OB(C6F5)3, respectively, to the silanone precursor complex 1. Metalation of the OH group in the acid–base adduct 2 gave the novel silathiocarboxylate 3. Likewise, the synthesis of the first donor–acceptorstabilizedsilanoicacid 4 was realized. L=4‐dimethylaminopyridine, R=2,6‐diisopropylphenyl