The synthesis of eight chloroformates using bis(trichloromethyl)carbonate(BTC) is reported. It has been found that the yields by this BTC method are improved over the earlier phosgene method, and sodium hydroxide is better than pyridine as catalyst for the preparation of phenyl chloroformate.

中文翻译：

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使用双（三氯甲基）碳酸酯制备氯甲酸酯

报道了使用双（三氯甲基）碳酸酯（BTC）合成八种氯甲酸酯。已经发现，这种BTC法的产率比早期的光气法有所提高，并且氢氧化钠作为制备氯甲酸苯酯的催化剂优于吡啶。