Table 2.

Metathesis reactions of iodonium triflate 5.

entry	Ar’	time	ratio 6:4:5:(other)[b]	yield[c]
a	Ph	15 h	13.9[d]:1.0:(−)[e]	51
b	4-MeC6H4	15 h	6.0:35.7:1.0:(−)[e]	59
c	4-MeOC6H4	15 h	2.3:2.2:1.0:(−)[f]	80
d	1-naphthyl	24 h	6.6:1.8:1.0:(−)[e]	35

^{[a], [b], [c]}Same as for Table 1.

^[d]Compounds 7 and 4 are identical in this case.

^[e]Other products — if at all detectable — were present in insignificant amounts.

^[f]A trace amount of Ph₂IOTf, too small to be measured accurately and perhaps arising as per ref. 1, was apparent by ¹H-NMR and MS.