BN-Embedded Heterocumulene

Versatile Synthon

A hybrid cumulene containing both C=C and B=N bonds that selectively forms boron-containing heterocycles with unsaturated substrates.

Wang, Xuyang · Fanshu, Cao · Cui, Chunming · Mo, Zhenbo

Journal of the American Chemical Society 2025

Advantages

Bent C=C=B=N=C framework with exceptional π-delocalization along the cumulenic backbone

Reacts with isocyanide, carbon dioxide, and organic azide to selectively form three-, four-, and five-membered boron-containing heterocycles