1 . Aspirin is synthesized through O - acylating reaction from acid and anhydride acid with anhydrous carbonate as catalyst.

以水杨酸和乙酸酐为原料,采用无水碳酸钠作为催化剂经O - 酰化反应合成了阿司匹林.

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2 . One advisable way is to synthesize NFM acylating morpholine with formic acid as acylating agent.

较可取的是以甲酸为酰化剂,吗啉酰化初期强放热反应,该类反应安全操作条件是安全生产的关键.

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3 . The propionyl chloride was found to be the appropriate acylating agent in terms of the cost.

通过成本比较,认为丙酰氯是合适的酰化剂.

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