(E)-3-cyclobutylprop-2-enenitrile

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a solution of 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (9.63 g, 0.0496 mol) in acetonitrile (124 mL, 2.37 mol) was added (E)-3-cyclobutylacrylonitrile (5.30 g, 0.0495 mol), followed by 1,8-diazabicyclo[5.4.0]undec-7-ene (3.70 mL, 0.0248 mol). The resulting mixture was stirred at room temperature overnight, then evaporated to dryness. The mixture was purified on silica gel, eluting with 0 to 80% EtOAc in hexanes, to give the desired product as a racemic mixture (11.2 g, 75.2%). LCMS (M+H) 302.4. evaporated to dryness The mixture was purified on silica gel eluting with 0 to 80% EtOAc in hexanes