In the initial step, acetoacetic ester is deprotonated and will then function a nucleophile and assault the alkyl halide. Right after this, the ester is then hydrolyzed to a carboxylic acid which then loses carbon dioxide by way of a properly arranged 6-membered transaction state: Exploration into CBG is proscribed https://marcovjeko.mybjjblog.com/cannabinoids-can-be-fun-for-anyone-45734604