Thiophene → HCID 12042957, compound

Participants

Reaction Steps

The compound (18) 294 mg (0.5 mmol) obtained in the above (A) was dissolved in thiophene 80 ml under argon atmosphere and the solution was transferred into the photochemical reaction vessel (Pyrex). Ultraviolet ray was irradiated using 400 W mercury lamp for 24 hours under argon atmosphere. The reaction mixture after irradiation was concentrated, and the residue was purified using short column (developer: isopropanol:dichloromethane=3:197) to obtain the product (19) 212 mg (0.39 mmol) (78.0%).

Provenance & Evidence