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Isopropenyl acetate was synthesized from ketene and acetone by direct esterification using strong acidic cation-exchange resin to substitute H2SO4 as catalyst.

以乙烯酮和丙酮为原料,用强酸性离树代酸作为催化剂,直接酯化合成乙酰丙酮的中间体乙酸异丙烯酯。

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When vitamin E acetate is vaporised by a vape's heating coil, highly toxic ketene gas is produced.

当维E酸盐被电子烟的加线圈蒸发时,会产有毒的乙烯酮气体。

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