Pd(II)-Catalyzed Sequential C–C/C–O Bond Formations: A New Strategy to Construct Trisubstituted Furans
摘要:
Palladium-catalyzed oxidative difunctionalization of enol ethers with 1,3-dicarbonyl compounds to construct trisubstituted furans in one step under mild conditions is described. The reaction is thought to proceed through a C-C bond formation along with a C-O bond closing the ring structure. Oxygen is the sole oxidant regenerating the Pd(II) catalyst.
Auto-Tandem Catalysis-Induced Synthesis of Trisubstituted Furans through Domino Acid-Acid-Catalyzed Reaction of Aliphatic Aldehydes and 1,3-Dicarbonyl Compounds by using<i>N</i>-Bromosuccinimide as Oxidant
作者:Wenbo Huang、Changhui Liu、Yanlong Gu
DOI:10.1002/adsc.201700074
日期:2017.6.6
A simple aluminium(III) chloride‐catalyzed synthesis of tri‐substitutedfurans from aliphatic aldehydes and 1,3‐dicarbonyl compounds was developed by using N‐bromosuccinimide (NBS) as an oxidant. This method was effective for the synthesis of various furan derivatives. Some of the products were not accessible with the previously reported methods. Mechanically, this reaction involved an auto‐tandem