17887-41-1Relevant articles and documents
Catalytic Enantioselective Dehydrogenative Si-O Coupling to Access Chiroptical Silicon-Stereogenic Siloxanes and Alkoxysilanes
Zhu, Jiefeng,Chen, Shuyou,He, Chuan
supporting information, p. 5301 - 5307 (2021/05/04)
A rhodium-catalyzed enantioselective construction of triorgano-substituted silicon-stereogenic siloxanes and alkoxysilanes is developed. This process undergoes a direct intermolecular dehydrogenative Si-O coupling between dihydrosilanes with silanols or alocohols, giving access to a variety of highly functionalized chiral siloxanes and alkoxysilanes in decent yields with excellent stereocontrol, that significantly expand the chemical space of the silicon-centered chiral molecules. Further utility of this process was illustrated by the construction of CPL-active (circularly polarized luminescence) silicon-stereogenic alkoxysilane small organic molecules. Optically pure bis-alkoxysilane containing two silicon-stereogenic centers and three pyrene groups displayed a remarkable glum value with a high fluorescence quantum efficiency (glum = 0.011, φF = 0.55), which could have great potential application prospects in chiral organic optoelectronic materials.
Stereo- And regio-selective synthesis of silicon-containing diborylalkenes: via platinum-catalyzed mono-lateral diboration of dialkynylsilanes
Long, Peng-Wei,Xie, Jia-Le,Yang, Jing-Jing,Lu, Si-Qi,Xu, Zheng,Ye, Fei,Xu, Li-Wen
supporting information, p. 4188 - 4191 (2020/04/22)
A highly chemoselective platinum-catalyzed mono-lateral diboration of dialkynylsilanes for the construction of silicon-tethered alkynyl diborylalkenes is described, in which tris(4-methoxyphenyl)phosphine was found to be an effective ligand for the cis-addition of diboron agents to the silicon-tethered alkynes, and the chiral ligand (AFSi-Phos)-mediated diboration of dialkynylsilanes resulted in the desymmetric construction of silicon-stereogenic centers with promising enantioselectivity.
Unpredictable reaction of phenyltrichlorosilane with tert-butyllithium
Scholz, Stefan,S?nger, Inge,Sch?del, Frauke,Bolte, Michael,Lerner, Hans-Wolfram
, p. 50 - 52 (2014/04/17)
The reaction of PhSiCl3 with one equivalent of Li[tBu] at r. t. yielded tBuPhSiCl2 whereas tBu2PhSiCl was only a minor product of the reaction of two molar equivalents Li[tBu] with PhSiCl3 at 60 °C. By contrast,