. Author manuscript; available in PMC: 2008 Dec 5.

Published in final edited form as: Org Lett. 2005 Jun 23;7(13):2571–2573. doi: 10.1021/ol050630b

Table 4.

Preparation of Different β²-Amino Acids



entry	R	yield, (SM)%^a	ee, %^b
1	Phenyl 6a	91	88
2	4-Chlorophenyl 6h	71 (10)	84
3	4-Methylphenyl 6i	16 (62)	63
4	4-Methoxyphenyl 6j	84	86
5	3,5-Bistrifluoromethylphenyl 6k	70 (23)	90
6	2-Naphthyl 6l	95	91

Isolated yields. Yields in parenthesis are for recovered starting materials.

Chiral HPLC analysis.