Homogeneous catalytic C(sp3)-H functionalization of gaseous alkanes

The conversion of light alkanes into bulk chemicals is becoming an important challenge as it effectively avoids the use of prefunctionalized alkylating reagents. The implementation of such processes is, however, hampered by their gaseous nature and low solubility, as well as the low reactivity of the C-H bonds. Efforts have been made to enable both polar and radical processes to activate these inert compounds. In addition, these methodologies also benefit significantly from the development of a suitable reactor technology that intensifies gas-liquid mass transfer. In this review, we critically highlight these developments, both from a conceptual and a practical point of view. The recent expansion of these mechanistically-different methods have enabled the use of various gaseous alkanes for the development of different bond-forming reactions, including C-C, C-B, C-N, C-Si and C-S bonds.

Automated summary

The conversion of light alkanes into bulk chemicals faces challenges due to their gaseous nature and low solubility, but efforts to activate inert compounds and develop suitable reactor technology have shown promise. Recent developments have enabled the use of different gaseous alkanes for various bond-forming reactions.