Synthesis of the Nitrile and Some Esters of 3,3-Dimethyl-2-oxochroman-4-acetic Acid
作者:A. Bojilova、Chr. Ivanov
DOI:10.1055/s-1986-31658
日期:——
It is shown that the previously found rearrangement can be applied on the nitrile 4 (X = CN) when the anhydride used possesses only one α-hydrogen atom. Refluxing of this nitrile with isobutyric anhydride in the presence of triethylamine leads to the expected rearrangement product 5 (X = CN). Making use of the same anhydride, the esters 4 (X = COOR) are converted into esters 5 (X = COOR).
研究表明,当使用的酸酐只有一个δ-氢原子时,之前发现的重排可以应用于腈 4(X = CN)。在三乙胺存在下,将这种腈与异丁酸酐回流,可得到预期的重排产物 5(X = CN)。利用相同的酸酐,酯 4(X = COOR)转化为酯 5(X = COOR)。