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工业生产維生素甲中,乙酰化是采用乙炔鋰作試剂。其标准制备法是通乙炔入鋰的液体氨溶液。如果不慎溅出,氨蒸发后卽发生火光。假如使乙炔鋰与乙
Industrial production of vitamin A, acetylation is the use of acetylene lithium as a reagent. The standard preparation method is through the acetylene lithium liquid ammonia solution. If accidentally splashed, ammonia flashes after 卽 evaporation. If you make lithium acetylene and B