329 Reaction of acid halides withr culi COCl COR OCuLi R Gattermann-Koch Reaction CHO CO/HCI AlCl/:cucl CH• Reaction of acid halides with R2CuLi: R2CuLi COCl COR R O • Gattermann-Koch Reaction: p. 329 CH3 CHO CH3 CO/ HCl AlCl3 / CuCl