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. 2022 Apr 11;18:381–419. doi: 10.3762/bjoc.18.43

Table 6.

Reaction conditions for the addition of amines to menadione by Mital and co-workers.

graphic file with name Beilstein_J_Org_Chem-18-381-i012.jpg

Entry Compounds R1, R2 Yield (%)

1 136a -H, -CH2Ph 45
2 136b -H, -CH2CO2H 52
3 136c -H, -CH3 45
4 136d -H, -C(CH2)5 45
5 136e -H, -Ph 44
6 136f -CH3, -CH2Ph 39