坚固耐用的多孔金属-有机骨架MOF-Cu 2 I 2(BTTP4)(BTTP4 =苯-1,3,5-三基三异烟酸酯)被证明是磺化叠氮化物,炔烃三组分偶联的有效多相催化剂。和胺,导致以高收率形成N-磺酰基am。MOF–Cu 2 I 2(BTTP4)可以通过简单过滤进行回收,并至少重复使用四次而不会损失任何产量。对配体对三组分偶联反应的影响的研究表明,当使用芳香族炔烃时,BTTP4可以提高速率以及化学选择性。通过单晶和粉末X射线衍射,气体和溶剂吸附,原位1 H NMR和FT-IR光谱,X射线光电子能谱(XPS)以及Cu的ICP分析,对催化过程进行了深入研究。浸出。
Aerobic synthesis of <i>N</i>-sulfonylamidines mediated by N-heterocyclic carbene copper(I) catalysts
作者:Faïma Lazreg、Marie Vasseur、Alexandra M Z Slawin、Catherine S J Cazin
DOI:10.3762/bjoc.16.43
日期:——
A new catalytic strategy for the one-pot synthesis of N-sulfonylamidines is described. The cationic copper(I) complexes were found to be highly active and efficient under mild conditions in air and in the absence of solvent. A copper acetylide is proposed as key intermediate in this transformation.