An transition metal copper?catalyzed cross?coupling reaction of tosylates with p?toluene sulfonate compounds and alkyl Grignard reagent has been developed, and a long alkyl branched fatty alcoholto could be synthesized simply and efficiently. 10?octylicosan?1?ol was obtained in 65% isolated yield under the optimized reaction conditions. It was further characterized by nuclear magnetic resonance,the structure of the compound was confirmed.
