A general and atom‐economical synthesis of 1,1‐diborylalkanes fromalkenes and a borane without the need for an additional H2 acceptor is reported for the first time. The key to our success is the use of an earth‐abundant zirconium‐based catalyst, which allows a balance of self‐contradictory reactivities (dehydrogenative boration and hydroboration) to be achieved. Our method avoids using an excess
Synthesis of 1,1-Organodiboronates
via Rh(I)Cl-Catalyzed Sequential Regioselective Hydroboration
of 1-Alkynes
作者:Kohei Endo、Takanori Shibata、Munenao Hirokami
DOI:10.1055/s-0028-1088131
日期:——
A Rh(I)Cl-DPPB-complex-catalyzed sequential hydroboration of aryl alkynes and aliphatic alkynes was achieved. The reaction proceeded with almost perfect regioselectivity to afford 1,1-organodiboronate compounds in moderate to good yield.
Facile preparation of organosilanes from benzylboronates and <i>gem</i>-diborylalkanes mediated by KO<sup><i>t</i></sup>Bu
作者:Man Tang、Wenyan Zhu、Huaxing Sun、Jing Wang、Su Jing、Minyan Wang、Zhuangzhi Shi、Jiefeng Hu
DOI:10.1039/d3sc02461j
日期:——
Methods to efficiently synthesize organosilanes are valuable in the fields of synthetic chemistry and materials science. During the past decades, boron conversion has become a generic and powerful approach for constructing carbon–carbon and other carbon–heteroatom bonds, but its potential application in forming carbon–silicon remains unexplored. Herein, we describe an alkoxide base-promoted deborylative