Table 1.

Selected optimization of sulfur‐based nucleophiles.

Entry	Loading [mol %]	Temperature [°C]	Solvent	Time [h]	Yield[a] [%]
1	10	80	1,2‐DCE	0.25	94
2	1	80	1,2‐DCE	0.25	90
3	1	80	EtOAc	0.25	96
4	10	40	HFIP	0.25	96
5	1	40	HFIP	0.25	94
6	1	r.t.	HFIP	12	94

[a] Isolated yield.