Synfacts 2024; 20(06): 0593
DOI: 10.1055/s-0043-1773243
Metals in Synthesis

Enantioselective Synthesis of Organoborons Enabled by Cyclopropene Ring Opening

Contributor(s):
Mark Lautens
,
Colton E. Johnson
Huang M.-Y, Zhao J.-B, Zhang C.-D, Zhou Y.-J, Lu Z.-S, Zhu S.-F. * Nankai University, Tianjin, P. R. of China
Enantioselective α‑Boryl Carbene Transformations.

J. Am. Chem. Soc. 2024;
146: 9871-9879
DOI: 10.1021/jacs.3c14766.
 

Significance

Zhu and coworkers report an enantioselective synthesis of organoboron compounds via the α-boryl carbene. This work expands on the scarcely used α-boryl carbene intermediate in a wide range of applications.


#

Comment

While investigating the mechanism, KIE studies revealed that the rate-determining step was likely the cyclopropene ring opening. Interestingly, it is suggested that the α-boryl carbene is likely a donor-type carbene when compared to the known α-ester and hydrogen carbenes.


#
#

Publication History

Article published online:
14 May 2024

© 2024. Thieme. All rights reserved

Georg Thieme Verlag KG
Rüdigerstraße 14, 70469 Stuttgart, Germany