Highly (Z)-Selective Synthesis of β-Monosubstituted α,β-Unsaturated Cyanides Using the Peterson Reaction
摘要:
[GRAPHICS]The Peterson reaction between (t-BuO)Ph2SiCH2CN and various aidehydes furnishes the corresponding beta-monosubstituted alpha,beta-unsaturated cyanides with high Z selectivity (Z:E = 92:8 to > 98:2).
Silicon assisted diversified reaction of a β-silylmethylene malonate with dimethylsulfoxonium methylide
作者:Pintu K. Kundu、Rekha Singh、Sunil K. Ghosh
DOI:10.1016/j.jorganchem.2008.11.005
日期:2009.2
Reaction of dimethylsulfoxoniummethylide with a β-silylmethylene malonate gives diversified products, cyclopropane, cyclobutane or allyl and homoallyl silanes depending upon the stoichiometry of the reactants and reaction conditions. Contrary to this, reaction of a β-arylmethylene malonate gives only the cyclopropane product. The product(s) formed are unique and the silicon group played a crucial
[GRAPHICS]The Peterson reaction between (t-BuO)Ph2SiCH2CN and various aidehydes furnishes the corresponding beta-monosubstituted alpha,beta-unsaturated cyanides with high Z selectivity (Z:E = 92:8 to > 98:2).