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. 2006 Dec 6;2:24. doi: 10.1186/1860-5397-2-24

Table 2.

Synthesis of dienyl tetramic acid derivatives from 5-hydroxy lactams

graphic file with name Beilstein_J_Org_Chem-02-24-i002.jpg
Reactant Product R R1 % Yield
11 23 -CH3 H 69
12 24 -CH3 -CH2Ph 65.5
13 25 -CH3 n-butyl 71
14 26 -CH3 cyclopropyl 62
15 27 -CH3 iso-butyl 58
16 28 -CH3 n-hexyl 55
17 29 -CH3 n-octyl 60.5
18 30 -CH3 n-propyl 62
19 31 -CH2Ph H 63
20 32 -CH2Ph n-butyl 55
21 33 -CH2Ph n-hexyl 62
22 34 -CH2Ph -CH2Ph 55