Table 2. Substrate Scope.

compound	R1	R2	yielda (%)
1a	4-OMePh	c-Hex	53
1b	4-OMePh	t-Bu	73
1c	4-OMePh	2,6-diMePh	17
1d	4-ClPh	c-Hex	27
1e	4-ClPh	t-Bu	41
1f	4-ClPh	2,6-diMePh	12
1g	Ph	c-Hex	60
1h	Ph	t-Bu	46
1i	Ph	2,6-diMePh	30
1j	ANT	c-Hex	70
1k	ANT	t-Bu	41
1l	ANT	2,6-diMePh	22
1m	t-Bu	c-Hex	76
1n	t-Bu	t-Bu	32
1o	t-Bu	2,6-diMePh	21

^aCalculated after purification.