Table 2.

Au(I)-Catalyzed Arene Synthesis: Propargyl Ester Scope

entry	propargyl ester	cp yielda	conditions Ab	yieldc	conditions Bb	yieldc
1		5 80%	3	89%	4	76%
2		68 82%		79%		19% (+ 53% 3)
3		70 60%		81%		57% (+ 32% 3)
4		72 80%		73 89%		74 63%
5		76 83%		77 91%		78 66%
6		80 59%		81 77% (8.3:1)d		82 84%
7		84 79%		85 72%		86 84%

^aIsolated yields of cis-cyclopropane. Reactions run with 3:1 ratio of propargyl ester:2

^bA: 5% AgOTf, 5% (ArO)₃PAuCl, CH₂Cl₂. B: 5% AgSbF₆, 5% (ArO)₃PAuCl, CH₂Cl₂.

^cIsolated yields

^dE:Z ratio.