Bora-amidinate as a cooperative ligand in group 2 metal catalysis.
Bora-amidinate as a cooperative ligand in group 2 metal catalysis.
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硼脒盐作为第 2 族金属催化中的协同配体
DOI:
10.1039/c7dt02136d
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发表时间:
2017
影响因子:
4
通讯作者:
S. Harder
中科院分区:
文献类型:
--
作者:
B. Freitag;C. A. Fischer;J. Penafiel;G. Ballmann;H. Elsen;C. Färber;D. Piesik;S. Harder
Syntheses and crystal structures of the monomeric bora-amidinate (bam) complexes DIPPNBN-Mg·(THF)3 and DIPPNBN-Ca·(THF)4 are presented; DIPPNBN = HB[N(2,6-iPr2-C6H3)]2. The simplicity of their 1H NMR spectra in THF-d8 suggest that their monomeric solid state structures are retained in solution. DIPPNBN-Mg·(THF)3 in C6D6, however, is in equilibrium with a dimeric species. Calculations (B3PW91/6-311++G**) reveal a very high localized negative charge (NPA: −1.103) on the N atoms in DIPPNBN-Mg. The strongly basic properties of the bam ligand are in agreement with catalytic activity of these complexes in the intramolecular alkene hydroamination. A mechanism is proposed in which the bam ligand is non-innocent and cooperative, playing an active role in substrate deprotonation and product protonation.
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影响因子:
--
作者:
Xiaoming Zhang;T. Emge;K. Hultzsch
通讯作者:
Xiaoming Zhang;T. Emge;K. Hultzsch
DOI:
--
发表时间:
2005
期刊:
影响因子:
--
作者:
T. Chivers;C. Fedorchuk;M. Parvez
通讯作者:
M. Parvez
DOI:
--
发表时间:
1979
期刊:
影响因子:
--
作者:
H. Fußstetter;H. Nöth
通讯作者:
H. Nöth
影响因子:
4.6
作者:
Barrett, Anthony G. M.;Crimmin, Mark R.;Procopiou, Panayiotis A.
通讯作者:
Procopiou, Panayiotis A.
影响因子:
2.8
作者:
Arrowsmith, Merle;Crimmin, Mark R.;Procopiou, Panayiotis A.
通讯作者:
Procopiou, Panayiotis A.