1,1'-(Diazomethylene)bis(benzene) → HCID 14010095, compound

Participants

Reaction Steps

2-[(1,3-Dioxo-2H-isoindol-2-yl)oxy]-2-propenoic acid (39.6 g, 0.17 mole) was dissolved in 800 ml of acetonitrile and a solution of diphenyldiazomethane (43.4 g, 0.224 mole/1000 ml acetonitrile) was added dropwise over 3 hours at 0° C. The reaction solution was evaporated to a solid which was triturated with hexane. The resulting solid was dissolved in dichloromethane and filtered through a pad of silica gel (Kieselgel 60). Addition of hexane produced 47.7 g of the title compound.

Provenance & Evidence