Synthesis

Convenient synthesis of carboxylic acid anhydrides using N, N-bis [2-oxo-3-oxazolidinyl] phosphorodiamidic chloride

J Cabre-Castellvi, A Palomo-Coll, AL Palomo-Coll

文献索引：Cabre-Castellvi, J.; Palomo-Coll, A.; Palomo-Coll, A.L. Synthesis, 1981 , # 8 p. 616 - 620

被引用次数: 20

摘要

Many methods for the conversion of carboxylic acids into the corresponding acid anhydrides using two-stage, one-flask pro-cedures or one-stage procedures with various reagents have been described"“-" M5 and reviewed “. The yields and the reaction conditions employed vary widely; reaction times from 30 min to 20 h, reaction temperatures from room temper-ature to reﬂux in acetic anhydride.

~97%

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~73%

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~96%

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~97%

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~99%

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~95%

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~96%

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~90%

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~10%

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~99%

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~93%

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~10%

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~98%

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~93%

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~99%

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~97%

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