First-Row d-Block Element-Catalyzed Carbon–Boron Bond Formation and Related Processes
Shubhankar Kumar Bose, Lujia Mao, Laura Kuehn, Udo Radius, Jan Nekvinda, Webster L. Santos, Stephen A. Westcott, Patrick G. Steel, Todd B. Marder
Abstract
Organoboron reagents represent a unique class of compounds because of their utility in modern synthetic organic chemistry, often affording unprecedented reactivity. The transformation of the carbon–boron bond into a carbon–X (X = C, N, and O) bond in a stereocontrolled fashion has become invaluable in medicinal chemistry, agrochemistry, and natural products chemistry as well as materials science. Over the past decade, first-row d-block transition metals have become increasingly widely used as catalysts for the formation of a carbon–boron bond, a transformation traditionally catalyzed by expensive precious metals. This recent focus on alternative transition metals has enabled growth in fundamental methods in organoboron chemistry. This review surveys the current state-of-the-art in the use of first-row d-block element-based catalysts for the formation of carbon–boron bonds.