Microwave-Assisted Synthesis and Characterization of [Rh₂(OAc)₄(L)₂] Paddlewheel Complexes: A Joint Experimental and Computational Study

Table 1

Attempts to obtain hydroamination products (see Scheme 1).

Entry	Ar	[Cat]	Solvent	PPA%
1	Ms	[Rh2(OAc)4]	Toluene	100
2	Dip	[Rh2(OAc)4]	Toluene	100
3	Tri-Br	[Rh2(OAc)4]	Toluene	100
4	Coumarin	[Rh2(OAc)4]	Toluene	100
5	Ms	None	Toluene	n.o.
6	Ms	[Rh2(OAc)4]	Toluene	n.o.
7	Tri-Br	[Rh2(OAc)4]	Toluene	n.o.
8	Dip	[Rh2(OAc)4]	Toluene	n.o.
9	None	[Rh2(OAc)4]	Toluene	n.o.
10	Ms (Drop)	[Rh2(OAc)4]	DMF	100

A mw tube was charged with HCCPh (0.1 g, 1 mmol), NH₂Ar (1.1 mmol), and [Rh₂(OAc)₄] (0.04 g, 0.001 mmol). The mixture was irradiated under mw at 110°C, 150 W and 0.5 h. Reaction without HCCPh. n.o. = not obtained.