Copper Salt-Catalyzed Azide-[3 + 2] Cycloadditions of Ynamides and Bis-Ynamides
作者:Xuejun Zhang、Hongyan Li、Lingfeng You、Yu Tang、Richard P. Hsung
DOI:10.1002/adsc.200600404
日期:2006.11
A one-pot synthesis of amide-substituted triazoles from alkyl bromides and ynamides is described here along with syntheses of novel bis-ynamides and their applications in [3+2] cycloadditions with azides to construct unique bis-triazoles.
The attempted synthesis of nitrogen-containing analogues of [10]paracyclophane
作者:B. Coffin、R. F. Robbins
DOI:10.1039/j39660000334
日期:——
A [10]paracyclophane in which –NH– or –NTs– replace the 2′,9′–CH2-groups of the “para” bridge was the anticipated product of the acyloin condensation of the appropriate bisamino-esters, but elimination and not cyclisation occurred. From the NN′-ditoluene-p-sulphonate of the ester the similar derivative of 1,4-bisaminomethylbenzene was obtained. The preparation of bisamino-esters is described.
[NH]或–NTs–取代“对”桥的2',9'–CH 2-基团的[10]对环环糊精是适当的双氨基酯的酰胆素缩合的预期产物,但消除并消除了没有环化发生。从NN '-ditoluene- p -磺酸盐的酯得到1,4- bisaminomethylbenzene的类似衍生物。描述了双氨基酯的制备。
A Highly Efficient Synthesis of Sulphonamide Derivatives in the Presence of N-Methyl-2-pyrrolidone
作者:Yong Tan、Su Juan Wang、Yi Ting Wang、Bao Xiang Gao、Xin Wu Ba
DOI:10.1080/00397910903470517
日期:2010.11.16
The sulphonamide derivatives are synthesized by two component condensation of alkyl bromide and sodium arylsulphonamide using N-methyl-2-pyrrolidone (NMP) as a reaction medium. This method results in high yields without the formation of unwanted side products, and expanding substrate scopes.
Cupped azacyclophanes based on a m-terphenyl framework: conformational features of their N-tosylamide precursors