Triphenylphosphine → HCID 9820978, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 4-hydroxybenzonitrile (87 mg, 0.73 mmol), naphthoquinone 4 (200 mg, 0.73 mmol), PPh3 (191 mg, 0.73 mmol) in dioxane (10 mL) was cooled to 10° C. and treated with DEAD (140 mg, 0.80 mmol). The reaction mixture was stirred for 10 h, concentrated in vacuo and purified by chromatography (5% EtOAc in benzene) to afford 11 as a yellow solid (171 mg, 53%), 1H NMR (CDCl3) 8.13 (dd, J=7.3, 1.4 Hz, 1H), 8.86 (dd, J=7.7, 1.1 Hz, 1H), 7.67 (dt, J=7.5, 1.5 Hz 1H), 7.60 (dt, J=7.5, 1.5 Hz, 1H), 7.57 (d, J=8.8 Hz, 2H), 6.93 (d, J=8.9 Hz, 2H),5.96 (s, 1H), 4.17 (t, J=6.4 Hz, 2H), 4.03 (t, J=6.3 Hz, 2H), 1.80-2.05 (m, 4H), 1.58-1.68 (m, 4H).

Provenance & Evidence