Diels - Alder reaction of 2 - merhylene - 1 - pheny 1 - 1.3 - butanedione catalysed by zinc chloride as lewis acid with 1.3 - cylcopentadiene was reported.

以氯化锌为路易斯酸催化剂,探讨了2 ─ 亚甲基─1 ─ 苯基 ─ 1.3 ─ 丁二酮与1.3 ─ 环戊二烯的Diels─Alder反应.

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Butanedione as feed scenting agent may improve appetite and of animal, and increase efficiency of production.

丁二酮作为饲料香味剂,可增加动物食欲及采食量, 提高生产效率.

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