<i>sp</i>
<sup>
<i>3</i>
</sup>
<i>Bis</i>
‐Organometallic Reagents via Catalytic 1,1‐Difunctionalization of Unactivated Olefins
作者:Shang‐Zheng Sun、Laura Talavera、Philipp Spieß、Craig S. Day、Ruben Martin
DOI:10.1002/anie.202100810
日期:2021.5.17
A catalytic 1,1‐difunctionalization of unactivated olefins en route to sp3 bis‐organometallic B,B(Si)‐reagents is described. The protocol is characterized by exceptional reaction rates, mild conditions, wide scope, and exquisite selectivity pattern, constituting a new platform to access sp3 bis‐organometallics.
描述了未活化烯烃在sp 3 双-有机金属B,B(Si)-试剂中的催化1,1-双官能化。该方案的特点是反应速度快,条件温和,范围广,选择性强,构成了一个新的访问sp 3 bis organometallics的平台。
First EPR characterisation of the structures and reactivities of α- and β-boryl radicals derived from boronic esters
作者:Andrew McCarroll、John C. Walton、Andrew McCarroll、Roger Nziengui、Bertrand Carboni
DOI:10.1039/a703950f
日期:——
The first EPR observations of carbon-centred radicals with α- and β-boronic ester substitutents indicated moderate thermodynamic stabilisation for the former whereas the latter had an inclination towards β-scission.
Ni-Catalyzed 1,2-Alkyl Borylation and Silylation of Allenes En Route to [1,3]-Bis-Organometallic Reagents
作者:Álvaro Velasco-Rubio、Fei Cong、Yubiao Tian、Ruben Martin
DOI:10.1021/acs.orglett.3c03574
日期:2023.12.29
reaction that rapidly and reliably accesses [1,3]-bis-organometallic reagents from allenes is reported. The protocol exhibits a predictable regioselectivity pattern that enables the incorporation of B,B(Si) fragments across the allene backbone under mild conditions, thus offering a complementary platform for accessing polyorganometallic reagents possessing both sp2 and sp3 hybridization from readily available