white to light yellow crystal powde
(2E)-1,4-Dibromo-2-butene, is used as a reagent in the preparation of diaminoalkenes though copper-mediated diamination reaction.
Crystals or white crystalline solid.
(E)-1,4-Dibromobut-2-ene may be sensitive to exposure to light and air. Insoluble in water.
(E)-1,4-Dibromobut-2-ene is incompatible with strong oxidizers and strong bases.
(E)-1,4-Dibromobut-2-ene is probably combustible.
Crystallise the dibromide from ligroin and/or distil it in a vacuum. [Beilstein 1 IV 79.]