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Beilstein J. Org. Chem. 2014, 10, 282–286, doi:10.3762/bjoc.10.24
Graphical Abstract
Scheme 1: (a) MeI, EtOH, reflux, 3 h (87%); (b) phenylglyoxal, Na2CO3, H2O, 5 °C, 6 h (96%); (c) MCPBA, CH2Cl2...
Scheme 2: Coupling of pent-4-ynoic acid with different amines. Conditions: (a) EDCI, DMAP, THF, rt, 36 h.
Scheme 3: Reaction of triazine 1 with different pent-4-ynamides. Conditions: n-BuLi, THF, −30 °C, 2 h.
Scheme 4: Reaction of triazines 6–9 under microwave irradiation. Conditions: Chorobenzene, 220 °C, 1 h.
Scheme 5: Preparation of aryl-N-triazinylpentynamides. Conditions: CuI (10 mol %), Pd(PPh3)2Cl2 (5 mol %), DM...
Scheme 6: Preparation of 3,4-dihydro-1,8-naphthridin-2(1H)-ones. Conditions: Chlorobenzene, 220 °C, 1 h.