Diphenylphosphinic carboxylic mixed anhydrides formed in situ from N_α-protected amino acids and diphenylphosphinic chloride have been critically evaluated in peptide synthesis. Wherever possible, 32.4 MHz ³¹P n.m.r. spectroscopy has been employed to follow the rates of both mixed anhydride formation and aminolysis.

中文翻译：

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二苯基次膦羧酸混合酸酐在肽合成中的应用

形成二苯基次膦羧酸混合酸酐原位从Ñ _α -保护的氨基酸和二苯基次膦酰氯在肽合成被严格评估。在可能的情况下，已采用32.4 MHz ³¹ P nmr光谱跟踪混合酸酐形成和氨解的速率。