Table 2.

Palladium-catalyzed cross-coupling of cesium tri-fluoroborate salt 8i.

entry	8	R1	R2	aryl halide	9	yielda
1b	8g	Ph	Bn	11	a	69
2b	8h	CF3	Bn	11	b	63
3	8i	Ph	(R)-CH(Me)Ph	11	c	86
4	8i	Ph	(R)-CH(Me)Ph	12	d	66
5	8i	Ph	(R)-CH(Me)Ph	13	e	66
6	8i	Ph	(R)-CH(Me)Ph	14	f	71
7	8i	Ph	(R)-CH(Me)Ph	15	g	75c
8	8i	Ph	(R)-CH(Me)Ph	16	h	70

^aIsolated yields based on limiting aryl halide, an average (±2%) of two runs.

^bCross-coupling proceeds with high diastereoselectivity (ca. 94:6 dr).

^c5 equiv of CsOH replaces Cs₂CO₃.