3-buten-1-ol is an enol compound with double bond and hydroxyl group. It is very active and can participate in a variety of organic synthesis reactions. It is widely used in fine chemical fields such as plastic lenses, food flavors and petrochemical chemicalbooks. , especially in the field of medicine for the synthesis of new drugs derived from heterocycles (such as anti-tumor drugs, anti-AIDS drugs and anti-proliferation drugs, etc.), it is a fine chemical with high added value.