The carboboration of Me<sub>3</sub>Si-substituted alkynes and allenes with boranes and borocations
作者:James R. Lawson、Valerio Fasano、Jessica Cid、Inigo Vitorica-Yrezabal、Michael J. Ingleson
DOI:10.1039/c5dt03003j
日期:——
ArylBCl2and aryl and vinyl containing borocations synthesised by electrophilic borylation effect the carboboration of TMS-substituted alkynes and allenes.
Reactivity of Lewis Acid Activated Diaza- and Dithiaboroles in Electrophilic Arene Borylation
作者:S. A. Solomon、A. Del Grosso、E. R. Clark、V. Bagutski、J. J. W. McDouall、M. J. Ingleson
DOI:10.1021/om201228e
日期:2012.3.12
3,2-benzodithiaborole ((CatS2)BCl) are active for arene borylation, displaying reactivity between that of catecholato- and dichloro-boron electrophiles. [(CatS2)B(NEt3)][AlCl4] is significantly less prone to nucleophile-induced transfer of halide from [AlCl4]¯ to boron compared to catecholato and dichloro borocations, enabling it to borylate arenes containing nucleophilic −NMe2 moieties in high conversion
Regio‐ and Stereoselective 1,2‐Carboboration of Ynamides with Aryldichloroboranes
作者:Cai You、Mika Sakai、Constantin G. Daniliuc、Klaus Bergander、Shigehiro Yamaguchi、Armido Studer
DOI:10.1002/anie.202107647
日期:2021.9.27
Catalyst-free 1,2-carboboration of ynamides is presented. Readily available aryldichloroboranes react with alkyl- or aryl-substituted ynamides in high yields with complete regio- and stereoselectivity to valuable β-boryl-β-alkyl/aryl α-aryl substituted enamides which belong to the class of trisubstituted alkenylboronates. The 1,2-carboboration reaction is experimentally easy to conduct, shows high
GRONOWITZ S.; ANDER I., CHEM. SCR., 1980, 15, NO 3, 135-144
作者:GRONOWITZ S.、 ANDER I.
DOI:——
日期:——
Mechanistic Studies into Amine-Mediated Electrophilic Arene Borylation and Its Application in MIDA Boronate Synthesis
作者:Viktor Bagutski、Alessandro Del Grosso、Josue Ayuso Carrillo、Ian A. Cade、Matthew D. Helm、James R. Lawson、Paul J. Singleton、Sophia A. Solomon、Tommaso Marcelli、Michael J. Ingleson
DOI:10.1021/ja3100963
日期:2013.1.9
computational study, the borylation of activated arenes at 20 °C proceeds through an S(E)Ar mechanism with borenium cations, [Y(2)B(amine)](+), the key electrophiles. For catecholato-borocations, two amine dependent reaction pathways were identified: (i) With [CatB(NEt(3))](+), an additional base is necessary to accomplish rapid borylation by deprotonation of the borylated arenium cation (σ complex), which otherwise