Solid-Phase Synthesis of Disubstituted N-Acylureas from Resin-Bound Ureas and Acyl Chlorides
摘要:
Acylureas (ureides) are valued for their important biological activities. Whereas cyclic acylureas have frequently been the object of solid-phase chemistry, only few reports have focused on the solid-supported preparation of acyclic representatives. We have prepared different types of acylureas on Rink amide resin in three or four steps. The products are either N-acylated (9, 18), N-acylated-N'-allcylated (10, 19), or N-acylated-N-alkylated (22). Characteristic NMR parameters of isomeric acylureas 10, 19, and 22 are discussed.
Synthesis of Nitrogen-Containing Phenoxyacetic Acid Derivatives
作者:E. T. Yamansarova、O. S. Kukovinets、R. A. Zainullin、F. Z. Galin、M. I. Abdullin
DOI:10.1007/s11178-005-0201-3
日期:2005.4
Nitrogen-containing phenoxyacetic acid derivatives were synthesized by reactions of substituted phenoxyacetic acids with amines, urea, and ethyl carbamate.
通过取代的苯氧乙酸与胺、脲和氨基甲酸乙酯的反应,合成了含氮苯氧乙酸衍生物。
Jose,C.I.; Pabrai,P.R., Indian Journal of Chemistry, 1969, vol. 7, p. 594 - 598
作者:Jose,C.I.、Pabrai,P.R.
DOI:——
日期:——
Anticonvulsant Drugs. II. Some Acylureas<sup>1</sup>
作者:M. A. Spielman、A. O. Geiszler、W. J. Close
DOI:10.1021/ja01192a063
日期:1948.12
Singh, H.; Yadav, L. D. S.; Bhattacharya, B. K., Journal of the Indian Chemical Society, 1984, vol. 61, # 5, p. 436 - 439
作者:Singh, H.、Yadav, L. D. S.、Bhattacharya, B. K.
DOI:——
日期:——
Synthetic Utility of Vilsmeier Reaction: More Vinamidinium Salts
作者:S. Selvi、P. T. Perumal
DOI:10.1080/00397919908085737
日期:1999.1.1
Synthesis of vinamidinium salts from substituted phenoxyacetyl ureas and Vilsmeier reagent is reported.