High stereoselectivity synthesis of <i>Z</i>-3-methyleneisoindolin-1-ones on a Cu/ETS-10 catalyst <i>via</i> domino coupling–cyclization without the use of protective groups and ligands
product synthesis. Herein, we report a novel strategy that uses basic ETS-10 zeolite-supported copper (Cu/ETS-10) as a catalyst for the highly selective synthesis of Z-3-methyleneisoindolin-1-ones in the absence of ligands. It was found that the rigidity of the zeolite skeleton was conducive to the high configurational selectivity of the product. The Cu/ETS-10 catalyst was easily recovered by simple filtration
A Tandem Elimination−Cyclization−Suzuki Approach: Efficient One-Pot Synthesis of Functionalized (<i>Z</i>)-3-(Arylmethylene)isoindolin-1-ones
作者:Caiyun Sun、Bin Xu
DOI:10.1021/jo801219j
日期:2008.9.19
A novel and efficient one-pot regioselective elimination-cyclization-Suzuki approach was developed to afford (Z)-3-arylmethyleneisoindolin-1-ones in good to excellent yields from easily accessible o-gem-dihalovinylbenzamides and organoboron reagents.