Efficient one-pot synthesis of dan-substituted organo- and silyl-boron compounds

Direct, transition metal-free B(dan)-installation into organic frameworks has been developed. Heteroaryl-H bonds were transformable into the respective heteroaryl-B(dan) bonds through deprotonation. The resulting heteroaryl-B(dan) compounds, which are otherwise difficult to access, can undergo the direct Suzuki-Miyaura coupling. The method was demonstrated to apply to a silicon nucleophile, giving Lewis acidity-diminished stable silyl-B(dan) and -B(aam) in one pot.

Automated summary

A direct and transition metal-free method for the installation of B(dan) into organic frameworks has been developed. Heteroaryl-H bonds can be transformed into heteroaryl-B(dan) bonds through deprotonation. The resulting heteroaryl-B(dan) compounds, which are typically difficult to access, can undergo direct Suzuki-Miyaura coupling. The method has also been demonstrated to be applicable to silicon nucleophiles, leading to the formation of Lewis acidity-diminished stable silyl-B(dan) and -B(aam) in one pot.