作者:Sergey A. Ivanovsky、Mikhail V. Dorogov、Dmitry V. Kravchenko、Alexandre V. Ivachtchenko
DOI:10.1080/00397910701462716
日期:2007.8
reported. Unsymmetrically substituted 3,4‐diamino‐3‐cyclobutene‐1,2‐diones and 3‐amino‐4‐hydroxy‐3‐cyclobutene‐1,2‐diones were prepared by interaction of diethyl squarate with different nucleophilic reagents such as alkali, primary and secondary amines and amino acids. Substituted 3‐amino‐4‐aryl‐3‐cyclobutene‐1,2‐diones were synthesized by interaction of squaryl dichloride with different arenes followed
摘要 报道了一种新型方酸衍生物的简便合成方法。不对称取代的 3,4-二氨基-3-环丁烯-1,2-二酮和 3-氨基-4-羟基-3-环丁烯-1,2-二酮是通过方酸二乙酯与不同的亲核试剂(如碱、伯胺和仲胺和氨基酸。取代的 3-氨基-4-芳基-3-环丁烯-1,2-二酮是通过二氯化方酸芳基与不同芳烃的相互作用以及胺的芳基方酸化作用合成的。开发了有效的程序来随后取代方酸二乙酯中的乙氧基和二氯化方芳基中的氯原子。合成的化合物具有很大的生物活性潜力,是生物医学筛选的有用对象。