How is Ethyl 2,2-dimethyl-3-(2-methyl-1-propen-1-yl)cyclopropanecarboxylate (CAS: 97-41-6) typically synthesized?

Ethyl 2,2-dimethyl-3-(2-methyl-1-propen-1-yl)cyclopropanecarboxylate (CAS: 97-41-6) can be synthesized through a series of reactions involving cyclopropanation and subsequent alkylation. Commonly, this involves the use of alkyl halides and a catalytic system. The reaction conditions include the use of a catalytic amount of a transition metal catalyst, such as palladium or rhodium, along with a ligand. The overall yield is typically around 80-90%, with good selectivity towards the desired product.