Seeking Heteroatom-Rich Compounds: Synthetic and Mechanistic Studies into Iron Catalyzed Dehydrocoupling of Silanes
作者:Danila Gasperini、Andrew K. King、Nathan T. Coles、Mary F. Mahon、Ruth L. Webster
DOI:10.1021/acscatal.0c01440
日期:2020.6.5
aminosilane synthesis along with kinetic studies using MeBnNH and MePhSiH2 as coupling partners. The kinetic studies suggest a reversible reaction with silane which generates aminosilane and an Fe-hydride dimer that undergoes rate-limiting protonolysis with amine with N–H bond cleavage in the transition state, consistent with a primary KIE of 2.42(3). The presence of dimers as on-cycle intermediates was analyzed
Yttrium-Benzyl Complexes Bearing Chiral Iminophosphonamide Ligands: Synthesis and Application in Catalytic Asymmetric Amine-Silane Dehydrocoupling Reactions
作者:Nan Li、Bing-Tao Guan
DOI:10.1002/adsc.201700327
日期:2017.10.25
A series of novel iminophosphonamide ligands with chiral diamine moieties were designed and synthesized. Yttrium–benzyl compounds bearing these chiral iminophosphonamide ligands showed high reactivity and selectivity on the first catalytic asymmetric cross‐dehydrogenative coupling of amines with prochiral silanes under mild conditions. A stable silylamine–boron derivative was synthesized in up to 23%
Liu, H. Q.; Harrod, J. F., Canadian Journal of Chemistry, 1992, vol. 70, p. 107 - 110
作者:Liu, H. Q.、Harrod, J. F.
DOI:——
日期:——
Syntheses of Dianionic α-Iminopyridine Rare-Earth Metal Complexes and Their Catalytic Acitivities toward Dehydrogenative Coupling of Amines with Hydrosilanes
作者:Xiuli Zhang、Shuangliu Zhou、Xiaofei Fang、Lijun Zhang、Guide Tao、Yun Wei、Xiancui Zhu、Peng Cui、Shaowu Wang
DOI:10.1021/acs.inorgchem.0c00907
日期:2020.7.20
benzyl-substituted amine O(CH2CH2)2NCH2CH2NHCH2C6H5 (5) afforded the corresponding yttrium complexes containing monoanionic ligands [2-(RNCH2)C5H4N]2YN(SiMe3)2 (R = tBu (4a) and 2,6-iPr2Ph (4b)) or [O(CH2CH2)2NCH2CH2NCH2C6H5][(Me3Si)2N)]Y(μ-Cl)(μ-η3-O(CH2CH2)2NCH2CH2NCH2C6H5)Li(THF) (6). Dianionic α-iminopyridine rare-earth metal amido complexes showed high catalyticactivities for the dehydrogenation
Iron(II)-Catalyzed Activation of Si–N and Si–O Bonds Using Hydroboranes
作者:Mirela A. Farcaş-Johnson、Danila Gasperini、Andrew K. King、Sakshi Mohan、Adam N. Barrett、Samantha Lau、Mary F. Mahon、Yann Sarazin、Sara H. Kyne、Ruth L. Webster
DOI:10.1021/acs.organomet.3c00339
日期:2023.10.23
We report the activation and functionalization of Si–N bonds with pinacol borane catalyzed by a three-coordinate iron(II) β-diketiminate complex. The reactions proceed via the mild activation of silazanes to yield useful hydrosilanes and aminoboranes. The reaction is studied by kinetic analysis, along with a detailed investigation of decomposition pathways using catecholborane as an analogue of the