Benzoyl chloride → (3,4-Dihydropyrido[2,3-b]pyrazin-1(2H)-yl)phenylmethanone

Participants

Reaction Steps

1,2,3,4-tetrahydropyrido[2,3-b]pyrazine was reacted with benzoyl chloride as in General Procedure 2 to give the title compound as a beige solid (<10% yield). M.p. 166-168° C., LCMS: m/z=240.12 (M+H+), 1H-NMR (DMSO-d6, 400 MHz) δ 3.45-3.49 (m, 2H), 3.84-3.87 (m, 2H), 6.40 (s, 1H), 6.77 (dd, J=4.8 Hz, 4.5 Hz, 1H), 6.92 (dd, J=1.5 Hz, 7.8 Hz, 1H), 7.10 (dd, J=1.5 Hz, 4.6 Hz, 1H), 7.25-7.34 (m, 5H).

Provenance & Evidence