Further Structural Modification of Sulfur-Stabilized Silicon Cations with Binaphthyl Backbones
Further Structural Modification of Sulfur-Stabilized Silicon Cations with Binaphthyl Backbones
复制标题
联萘主链硫稳定硅阳离子的进一步结构改性
DOI:
10.1055/s-0037-1610697
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发表时间:
2019
期刊:
影响因子:
--
通讯作者:
M. Oestreich
中科院分区:
文献类型:
--
作者:
P. Shaykhutdinova;M. Oestreich
The synthesis and spectroscopic characterization of two novel cationic silicon–sulfur Lewis pairs with a chiral 4,4′-disubstituted binaphthyl silepine backbone are described. Both Lewis acids induce significant enantioselectivity in the model Diels–Alder reaction of cyclohexa-1,3-diene and chalcone but additional substitution of the binaphthyl backbone exerts a minimal effect on enantioinduction compared to previously reported Lewis acids. Another silicon cation with a chiral spirocyclic backbone induces enantioselectivity in the same range but its synthesis is laborious.
影响因子:
--
作者:
Ruth K. Schmidt;H. Klare;R. Fröhlich;M. Oestreich
通讯作者:
M. Oestreich
影响因子:
15
作者:
Johannsen, M;Jorgensen, KA;Helmchen, G
通讯作者:
Helmchen, G