374564-35-9Relevant articles and documents
Synthesis of pyramidal tetraarylborate pentads
Sakamoto, Nobuhito,Ohta, Masahiko,Kokado, Kenta,Sada, Kazuki
, p. 14853 - 14858 (2019)
In the present study, we designed tetrahedral tetraarylborate pentads which were synthesized by a typical click reaction, copper-catalyzed azide-alkyne cyclization. The synthesis of the borate pentads was confirmed by FT-IR and NMR spectroscopies, and NMR measurements indicated a rapid exchange of bound and unbound counter cations. The obtained borate pentads exhibited a representative behavior of weak electrolytes, and thus a decrease of their concentration caused a rapid increase of their molar conductivity, especially at the limit of dilution. Additionally, the observed association constant did not correspond to the theoretical association constant, probably because of the multivalent ionic dissociation dependent on the dielectric constant of the media.
The facile and direct formylation of organoboron aromatic compounds with benzodithiolylium tetrafluoroborate
Petruzziello, Diego,Gualandi, Andrea,Jaffar, Hamza,Lopez-Carrillo, Veronica,Cozzi, Pier Giorgio
, p. 4909 - 4917 (2013/08/23)
Organoboron compounds can be used to effect a direct formylation in the absence of transition metals. We report that the direct reaction between boronic derivatives and benzodithiolylium tetrafluoroborate, a commercially available carbenium ionic compound, is possible and provides access to many interesting compounds without the use of transition metals. The direct reaction of the carbenium ion with boronic derivatives results in the formation of substituted arylcarbenium ions, a number of which can be further utilized in materials chemistry or for the direct transformation into other compounds. In addition to the rich chameleonic chemical nature of the benzodithiol intermediate, such species can also undergo a metallation reaction and subsequent treatment with a wide range of electrophiles to access a variety of functional groups (aldehyde, ketone, acid, and alkyl groups). Copyright
Preparation of potassium azidoaryltrifluoroborates and their cross-coupling with aryl halides
Cho, Young Ae,Kim, Dong-Su,Ahn, Hong Ryul,Canturk, Belgin,Molander, Gary A.,Ham, Jungyeob
supporting information; experimental part, p. 4330 - 4333 (2009/12/26)
Potassium azldoaryltrlfluoroborates have been prepared from the corresponding haloaryltrifluoroborates In 73-98% yields. Also, we successfully cross-coupled the azido-functlonallzed organotrifluoroborates and carried out a one-pot sequential cross-couplin
