1: 97 percent / NaOMe / methanol / 0.25 h / Ambient temperature 2: 8 percent / 4-methoxyphenol / tetrahydrofuran / 5 h / Ambient temperature; Irradiation View Scheme

1: 97 percent / NaOMe / methanol / 0.25 h / Ambient temperature 2: 8 percent / 4-methoxyphenol / tetrahydrofuran / 5 h / Ambient temperature; Irradiation View Scheme

sodium hydride in tetrahydrofuran 3.5 h; Ambient temperatureIrradiation; Yield given. Yields of byproduct given. Title compound not separated from byproducts;