1-hydroxy-3H-2,1-benzoxaborole-3-carbonitrile

反応条件: temp:5.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: 2-formyl phenyl boronic acid (1.0 parts, 0.007M) was added to an aqueous solution of sodium cyanide (0.35 parts) in water (20 ml) at 20° C. with stirring. After 15 mins the reactants were cooled to 5° C. and carefully neutralised to pH 5 with concentrated hydrochloric acid. The resultant white precipitate was filtered and recrystallised from water (25,ml). The product was dried over calcium chloride. Yield=0.29 parts (26% theory) mp=114°-5° C. The resultant white precipitate was filtered recrystallised from water (25,ml) The product was dried over calcium chloride Yield=0.29 parts (26% theory) mp=114°-5° C.