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. Author manuscript; available in PMC: 2008 Aug 26.
Published in final edited form as: Chem Rev. 2007 May 27;107(6):2503–2545. doi: 10.1021/cr0509556

Table 28.

Catalyst Evaluation in the Asymmetric addition of diethylzinc to benzaldehyde under solvent-free conditions.

graphic file with name nihms-63649-t0080.jpg
entry R mol% cat temp. (°C) time (h) yield (%) ee (%)
1 n-Bu 10 0 2 99 87
2 n-Bu 5 0 2 97 87
3 n-Bu 3.4 0 2 93 87
4 n-Pr 5 0 2 99 85
5 −(CH2)4− 5 0 2 97 86
6 n-Bu 5 −10 4 98 89
7 n-Bu 5 −28 6 99 87