Table 3.

Metathesis reactions of iodonium triflates 7.

entry	Ar	Ar’	ratio 6:4:7:(other)[b]	yield[c]
a[d]	Ph	Ph	12.9[e]:1.0:(−)[f]	65
b[d]	“	4-MeC6H4	1.0:1.3:0.0:(−)[f]	73
c[d]	“	4-MeOC6H4	60.1:35.1:1.0:(−)[f]	76
d[d]	“	1-naphthyl	33.3:5.9:1.0:(−)[f]	59
e[d]	4-MeOC6H4	Ph	11.5:8.2:1.0:(1.0)[g]	60
f[d]	“	4-MeC6H4	1.3:1.0:0.0:(−)[f]	79
g[d]	“	4-MeOC6H4	6.9[e]:1.0:(−)[f]	89
h[d]	“	1-naphthyl	8.4:1.2:1.2:(1.0+0.6)[h]	64
i[d]	mesityl	4-MeC6H4	1.0:7.0:0.0:(−)[f]	26
j[d]	“	4-MeOC6H4	1.0:13.0:0.0:(−)[f]	37
k[d]	“	1-naphthyl	1.0:8.4:8.4:(−)[i]	27

^{[a], [b], [c]}: same as in Table 1.

^[d]Reaction time: 12 h.

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

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

^[g]This other product was bis-(4-anisyl)iodonium triflate (¹H-NMR, MS), perhaps arising as per ref. 1.

^[h]The major other product was 1-naphthyl-4-nitrophenyl-iodonium triflate; the minor other product was bis-(4-anisyl)iodonium triflate (¹H-NMR, MS).

^[i]A trace amount of 1-naphthyl-4-nitrophenyl-iodonium triflate, too small to be measured accurately, was apparent by ¹H-NMR and MS.