Cyclic (amino)(imino)carbene complexes by borylene transfer to isocyanides

Area of Science:

• Organometallic Chemistry
• Inorganic Chemistry
• Boron Chemistry

Background:

• Chromium borylene complexes are reactive intermediates.
• Carbene complexes are important in synthesis.
• Cyclic boron compounds have diverse applications.

Purpose of the Study:

• To report the formation of new boron-containing cyclic (amino)(imino)carbene complexes.
• To investigate the reactivity of chromium borylene complexes with isocyanides.

Main Methods:

• Reaction of a chromium borylene complex, specifically [(OC)(5)Cr=B=N(SiMe(3))(2)], with various isocyanides.
• Characterization of the resulting boron-containing cyclic complexes.

Main Results:

• Facile formation of boron-containing cyclic (amino)(imino)carbene complexes was achieved.
• The reaction pathway involves the coordination and insertion of isocyanides into the chromium-boron bond.

Conclusions:

• The study demonstrates a new synthetic route to boron-containing cyclic carbene complexes.
• This work expands the scope of organometallic chemistry involving boron and chromium.