application | heptene derivatives such as 6-heptene-1-ol is an important organic synthesis intermediate, which is widely used in the fields of medicine, pesticides, food additives, flavors and fragrances, synthesis of new materials and development of fine chemicals. In the field of medicine, heptene derivatives play a vital role in the synthesis of drugs for the treatment of pain, anti-inflammatory and sedative. For example, protiline (commonly known as: Alylcycloheptene, protriptyline) has both a sedative effect and It can play some exciting effects, and the antidepressant effect is faster; in the field of pesticides, it is used for the preparation of high-efficiency and low-toxic herbicides and pesticides, for example, heptene phosphorus is a chemical used to control harmful organisms (pests, mites, nematodes, pathogenic bacteria, weeds and rodents) that endanger agricultural and animal husbandry production and to regulate plant growth. |
prepare | 4-bromo-1-butanol (15.3g,0.1mol) dissolved in 100ml of anhydrous tetrahydrofuran, and dropping allyl magnesium chloride (0.25mol,250ml,1M) anhydrous tetrahydrofuran solution and lithium tetrachlorocuprate (10mmol,0.2mol/L,50ml) anhydrous tetrahydrofuran solution at 0 ℃, after continuing the reaction for 15 hours, an appropriate amount of saturated ammonium chloride solution was added to stop the reaction, tetrahydrofuran was distilled, ethyl acetate was added for extraction for 3 times, the organic layer was dried by anhydrous sodium sulfate and the solvent was distilled to obtain a crude product, and the yield was 86% by distillation under reduced pressure to obtain 9.8g of 6-heptene 1-alcohol (4). |