Table 2. Screening of the Reaction Conditions for the Cascade Wacker/Allylation Sequence^a.

entry	Pd	Cu	atmosphere	yield (%)b
1	+	+	Ar	70
2	+	–	O2	56
3	+	–	Ar	69
4	–	+	O2	0
5	–	+	Ar	0
6	–	–	O2	0
7	–	–	Ar	0

^aAll reactions were conducted with 0.194 mmol of 1 in DME (1.0 mL).

^bDetermined by ¹H NMR analysis using an internal standard.