A convenient one-pot synthesis of <i>N</i>-substituted amidoximes and their application toward 1,2,4-oxadiazol-5-ones
作者:Wong Phakhodee、Chuthamat Duangkamol、Nitaya Wiriya、Mookda Pattarawarapan
DOI:10.1039/c8ra08207c
日期:——
The first direct one-pot approach for the synthesis of N-substituted amidoximes from secondary amides or the intermediate amides has been developed. Through the Ph3P–I2-mediated dehydrative condensation, a variety of N-aryl and N-alkyl amidoximes (R1(CNOH)NHR2, where R1 or R2 = aryl, alkyl, or benzyl) were readily afforded under mild conditions and short reaction times. The synthetic application of
已经开发出第一个直接的一锅法,用于从仲酰胺或中间酰胺合成N-取代的偕胺肟。通过Ph 3 P-I 2介导的脱水缩合,很容易生成多种N-芳基和N-烷基偕胺肟(R 1 (C NOH)NHR 2,其中R 1或R 2 = 芳基、烷基或苄基)条件温和,反应时间短。获得的偕胺肟的合成应用也通过碱介导的羰基环化与 1,1'-羰基二咪唑形成 1,2,4-恶二唑酮得到证实。