Synthesis of functionalized furo[3,2-c]coumarins via a one-pot oxidative pseudo three-component reaction in poly(ethylene glycol)
摘要:
An efficient and straightforward synthesis of functionalized furo[3,2-c]coumarins via a one-pot oxidative pseudo three-component condensation of aldehydes and 4-hydroxycoumarin (2 equiv) in poly(ethylene glycol) (PEG) as solvent is described. A mixture of I-2 and K2S2O8 in the presence of Na2CO3 was used as an oxidative reagent. The structure of the furo[3,2-c]coumarins was established by X-ray single crystal structure analysis. (c) 2012 Elsevier Ltd. All rights reserved.
Copper(<scp>ii</scp>) bromide-catalyzed intramolecular decarboxylative functionalization to form a C(sp<sup>3</sup>)–O bond for the synthesis of furo[3,2-c]coumarins
作者:W. L. Zhang、S. N. Yue、Y. M. Shen、H. Y. Hu、Q.-H. Meng、H. Wu、Y. Liu
DOI:10.1039/c4ob02490g
日期:——
Copper(ii) bromide-catalyzed intramolecular decarboxylative functionalization to form a C(sp3)–O bond has been developed.