C-H Functionalization on Carbohydrates

Functionalization of C-H bonds has received significant attention in organic chemistry during the last decade and it is still a hot topic. In particular, C-H modification of natural products has benefitted from this development. Carbohydrates are densely functionalized natural products, and methods for their functionalization are therefore very attractable. This review presents methods from the last five decades and gives an over-view of the developments in C-H functionalization of carbohydrates. It covers all methods in which a C-H bond is broken: from radical abstractions and carbene insertion to new metal-catalyzed approaches. The review systematically covers the carbohydrates position-by-position and hence gives a quick overview.