Nano polypropylenimine dendrimer (DAB-PPI-G<sub>1</sub>): as a novel nano basic-polymer catalyst for one-pot synthesis of 2-amino-2-chromene derivatives
作者:Behrooz Maleki、Safoora Sheikh
DOI:10.1039/c5ra04458h
日期:——
For the first time, a novel nano basic-polymer catalyst for the green synthesis of new 2-amino-2-chromene derivatives, avoiding the use of any metal or acid catalysts, is proposed.
Elagamey; El-Taweel, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1990, vol. 29, # 9, p. 885 - 886
作者:Elagamey、El-Taweel
DOI:——
日期:——
GHANI, ALI ELAGAMEY ABDEL;MOHAMED, ABDEL AZIZ FATHY EL-TAWEEL, INDIAN J. CHEM. B , 29,(1990) N, C. 885-886
作者:GHANI, ALI ELAGAMEY ABDEL、MOHAMED, ABDEL AZIZ FATHY EL-TAWEEL
DOI:——
日期:——
Task Specific Onium Salt as Soluble Support in Multicomponent Synthesis of 4-Aryl-2-amino-3-ethoxycarbonyl-naphthopyrans
作者:Cuifen Lu、Li Zhang、Guichun Yang、Zuxing Chen
DOI:10.1002/cjoc.201190023
日期:2010.12
this paper was presented an application of taskspecificoniumsalt as solublesupport in multicomponentsynthesis of 2‐amino‐3‐ethoxycarbonyl‐naphthopyrans. The starting task‐specificoniumsalt was functionalized in good yield with chloroethyl alcohol, followed by three steps containing esterification, three components reaction and cleavage from oniumsalt to afford naphthopyrans in 60% –88% overall
本文介绍了任务特异性鎓盐作为可溶性支持物在2-氨基-3-乙氧基羰基萘并吡喃的多组分合成中的应用。起始任务专用的鎓盐用氯乙醇以高收率官能化,然后进行三个步骤,包括酯化,三组分反应和从鎓盐上裂解,得到萘并吡喃,总产率为60%–88%。所有产物均通过IR,1 H NMR,13 C NMR和MS技术表征。