Making Aryl Boronate Ester without Using Transition Metal

Transition-Metal-Free Synthesis of an Aryl Boronate Ester through Base-Mediated Boryl Substitution of an Aryl Halide with a Silylborane

Org. Synth. 2022, 99, 39-52, by Ryosuke Shishido and Hajime Ito

 

The silylborane 1a was prepared by the method reported by Noth et al.[9] and 1b and 1c were obtained by ligand exchange reaction of 1a by Buynak and Geng [10].

 

[9] W. Biffar, H. Noth, R. Schwerthoffer, Liebigs Ann. Chem. 1981, 2067.

[10] J. D. Buynak, B. Geng, Organometallics 1995, 14, 3112.

 

Very glad to see my old work of 1995 found some useful applications!