Piers’ borane-mediated hydrosilylation of epoxides and cyclic ethers
作者:Jianbo Zhang、Sehoon Park、Sukbok Chang
DOI:10.1039/c8cc03741h
日期:——
diarylborane-catalysed hydrosilylation of epoxides and cyclicethers. Mechanistic studies on the in situ generated Piers’ borane (C6F5)2BH with hydrosilanes in the presence of an epoxide revealed that an alkyloxy(diaryl)borane (C6F5)2BOR is readily formed as a catalytically competent species for the outer-sphere hydrosilylation of epoxides and cyclicethers.
我们报道了环氧化物和环醚的第一个二芳基硼烷催化的氢化硅烷化反应。在环氧化物存在下与氢硅烷原位生成Piers's硼烷(C 6 F 5)2 BH的机理研究表明,烷氧基(二芳基)硼烷(C 6 F 5)2 BOR易于形成为催化活性物质用于环氧化物和环醚的外球氢化硅烷化。
A New Solvent-Free Reaction for the Preparation of Alkoxysilane from Cyclic Ethers, Alcohols, or Carbonyl Compounds
The 1,1,3,3-tetramethyldisiloxane/Pd/C system is reported here as a new method to accomplish the ring-opening of ethers and epoxides to give protected alcohols. The approach can also be used for the protection of primary or secondary alcohols and for the reduction of aldehydes and ketones to obtain alkoxysilanes.