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. 2012 Feb 29;13(3):2727–2743. doi: 10.3390/ijms13032727

Table 2.

Results of synthesis of chiral Brønsted acids having aromatic groups in the auxiliary.

# Compound 1 Ar δ P a Yield [%] b
1 a C6H5 −1.78 87
2 b p-CH3C6H4 −1.83 81
3 c p-CH3OC6H4 - -
4 e 2,4-diClC6H3 - -
a

Determined by 31P NMR;

b

Isolated yield after column chromatography;

-: no product isolated.