Table 7.

Three-component reaction using L4AuCl/AgNTf₂^a

Entry	Ar	Solvent	Time (h)	% yieldb	regio (A:B)c	% eed
1	Ph	C7H8	21	27 (37)	4.5 : 1	85
2	Ph	CH2Cl2	48	75 (0)	5 : 1	81
3	4-Cl-C6H4	CH2Cl2	24	30 (51)	3 : 1	83
3	4-Cl-C6H4	CH2Cl2	168	52 (14)	3 : 1	82

^aReactions performed on 0.03 mmol scale imine (0.2 M) with 2 (1.2 equiv) and 7 (1.2 equiv) in a sealed vial.

^bDetermined with the use of an internal standard (mesitylene) by ¹H NMR. The value in parentheses is the yield of the corresponding uncyclized urea.

^cDetermined by ¹H NMR.

^dDetermined by chiral HPLC.