CuI-Catalyzed: One-Pot Synthesis of Diaryl Disulfides from Aryl Halides and Carbon Disulfide

Table 2

CuI-catalyzed and KF/Al₂O₃ mediated, direct synthesis of diaryl disulfides from aryl halides and CS₃²⁻ at 110°C.

Entry	Aryl halide	Diaryl disulfide	Yield (%)^a
1			95
2			91
3			93
4			85^b
5			81^b
6			83
7			83
8			65
9			82^b
10			60
11			62^b
12			95^b
13			Trace

aYield of the isolated product. ^bA small amount of the corresponding diaryl sulfide derivative was formed as by-product (5–10%).