Hydroalumination of a chlorotrialkynylsilane: spontaneous stepwise 1,3-dyotropic rearrangement via an intermediate silyl cation.
Hydroalumination of a chlorotrialkynylsilane: spontaneous stepwise 1,3-dyotropic rearrangement via an intermediate silyl cation.
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氯三炔基硅烷的氢铝化:通过中间甲硅烷基阳离子自发逐步进行 1,3-双变重排
DOI:
10.1002/chem.201402713
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发表时间:
2014
期刊:
影响因子:
--
通讯作者:
E.-U. Würthwein
中科院分区:
文献类型:
--
作者:
W. Uhl;J. Bohnemann;M. Layh;E.-U. Würthwein
A new functionalised alkynylsilane, Cl‐Si(CC‐CMe3)3(3), was obtained by a facile multistep synthesis. Treatment of3with equimolar quantities of the hydrides H‐M(CMe3)2(M=Al, Ga) gave the mixed alkenyl‐di(alkynyl)silanes, in which the chlorine atom adopts a bridging position between the aluminium and silicon atoms. Dual hydrogallation of3resulted in the formation of a di(alkenyl)‐alkynylsilane containing two gallium atoms, one of which is coordinated to the chlorine atom, and the second is bonded to the α‐carbon atom of the remaining alkynyl group. Atert‐butylsilane was unexpectedly formed by a unique 1,3‐dyotropic chlorine–tert‐butyl exchange for the corresponding dialuminium compound. One aluminium atom is bonded to atert‐butyl group, a terminal chlorine atom and the α‐carbon atom of the ethynyl moiety; the second is coordinatively unsaturated, with two terminaltert‐butyl substituents. High‐level quantum‐chemical calculations favour a stepwise dyotropic rearrangement with an intermediate cationic silicon species over a simultaneoustert‐butyl–chlorine migration via a five‐coordinate silicon atom in the transition state.
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影响因子:
3.3
作者:
W. Uhl;M. Rohling;Jutta Kösters
通讯作者:
Jutta Kösters
影响因子:
2.8
作者:
Matti Reissmann;A. Schäfer;Sebastian T. Jung;T. Müller
通讯作者:
T. Müller
影响因子:
2.8
作者:
W. Uhl;M. Claesener;A. Hepp
通讯作者:
A. Hepp
DOI:
10.1002/chin.200736054
发表时间:
2007-05
期刊:
ChemInform
影响因子:
--
作者:
C. K. Jin;Toshiaki Yamada;S. Sano;M. Shiro;Y. Nagao
通讯作者:
C. K. Jin;Toshiaki Yamada;S. Sano;M. Shiro;Y. Nagao
DOI:
--
发表时间:
1998
期刊:
影响因子:
--
作者:
M. Ichinohe;N. Fukaya;A. Sekiguchi
通讯作者:
A. Sekiguchi