Diastereoselective addition of higher order cuprates and zinc-copper reagents to imines derived from (S)-1-phenylethylamine
作者:Marco Bandini、Pier Giorgio Cozzi、Achille Umani-Ronchi、Marzia Villa
DOI:10.1016/s0040-4020(99)00418-4
日期:1999.6
The diastereoselective addition of higher order (H.O.) cuprates and zinc-copper reagents to aliphatic and aromatic chiral iminesderivedfrom (S)-1-phenylethylamine was examined. Aliphatic chiral imines react with (Allyl)2CuCNLi2 and (n-Bu)2Cu(CN)Li2 in the presence of BF3·Et2O and Me3SiCl in high diastereoselection, while c-C6H11Cu(CN)ZnI and AllylCu(CN)ZnBr afford chiral amines in comparable yields
Catalytic allylation of imines promoted by lanthanide triflates
作者:Cristina Bellucci、Pier Giorgio Cozzi、Achille Umani-Ronchi
DOI:10.1016/0040-4039(95)01467-v
日期:1995.10
Lanthanide triflates are effective catalysts for the allylation of imines with allyltributylstannane affording homoallylamines in moderate to good yields.