A systematic investigation of α-ureidoalkylation of N-hydroxyalkylureas with 4,5-dihydroxy-1,3-dimethyl-4,5-diphenylimidazolidin-2-one allowed the discovery of a synthetic route to earlier unknown N-hydroxyalkyl-1,5-diphenylglycolurils. The yields of these compounds decrease with lengthening and branching of the alkyl chain in the starting ureas.
通过对 N-羟基烷基
脲与 4,5-二羟基-1,3-二甲基-
4,5-二苯基咪唑烷-2-酮进行α-
脲基烷基化的系统研究,发现了一条合成早先未知的 N-羟基烷基-1,5-二苯基甘
氨酰
脲的路线。这些化合物的产量随着起始
脲中烷基链的延长和分支而降低。