Yield:-

Steps:

Multi-step reaction with 2 steps
1.1: aluminium; mercury(I) chloride / tetrahydrofuran / 0.5 h / 20 °C / Inert atmosphere
1.2: -78 °C / Inert atmosphere
2.1: 2,6-dichloropyridine N-oxide; C₃₃H₅₄AuClP; sodium tetrakis[(3,5-di-trifluoromethyl)phenyl]borate / 1,2-dichloro-ethane / 5 h / 50 °C

References:

Ling, Hui-Bo;Chen, Zi-Sheng;Yang, Fang;Xu, Bin;Gao, Jin-Ming;Ji, Kegong [Journal of Organic Chemistry,2017,vol. 82,# 13,p. 7070 - 7076]