反应详情

A solution of 2.0 g of L-arabinose in 5 ml of methanol and 5 ml of hydrazine hydrate was stirred overnight and then evaporated in vacuo. A 5 ml portion of methanol was added to the residue. After standing overnight the oil solidified. The solid was collected and dried, giving 1.5 g of L-arabinose hydrazone.

1. customevaporated in vacuo
2. additionA 5 ml portion of methanol was added to the residue
3. customThe solid was collected
4. customdried