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. Author manuscript; available in PMC: 2022 Oct 13.
Published in final edited form as: Organic Synth. 2021;98:117–130. doi: 10.15227/orgsyn.098.0117

Table 3.

Effect of Salt Additives

graphic file with name nihms-1703820-t0010.jpg
entry additive time (h) yield ee
1 NaCl 24 trace
2 NaBF4 8 81 88
3 NaPF6 6 97 87
4 NaSbF6 5 99 81
5 n-Bu4NPF6 24 98 90
6 n-Bu4NBF4 24 95 88
7 NaBPh4 24 trace
8 NH4BF4 15 93 89
9 NH4PF6 12 96 91