Table 2.

Catalytic Asymmetric Synthesis of 1,1-Diarylalkanes from Racemic Benzylic Alcohols: Scope with Respect to the Alcohol^a

entry	benzylic alcohol		ee (%)	yield (%)b
1		R =Me	88	88
2		Et	94	92
3		n-Pr	94	90
4		n-Bu	95	83
5		i-Bu	95	77
6		cyclobutyl	94	51
7c			95	80
8			88	90
9			86	59
10d			94	77
11			92	84
12			94	84
13			95	88
14			94	75
15		X = F	93	87
16		Cl	90	88
17		Br	91	79
18		Ph	92	78
19e		X = OMe	95	94
20c,e		OPiv	84	84
21e		X = OMe	94	94
22c		CF3	89	63
23e			92	88
24			81	66
25			91	79
26			93	88
27			83	54
28			94	93

^aAll data are the average of two experiments.

^bYield of purified product.

^cReaction temperature: −35 °C.

^dNucleophile: (p-tolyl)ZnI.

^eNucleophile: PhZnI.