4-Diethoxyphosphonyl-2-methyl-1,3-dienolates and their O-Acylated and O-Silylated Derivatives: New, Efficient and Highly Stereoselective Polyvinylogation Reagents
4-Diethoxyphosphonyl-2-methyl-1,3-dienolates and their O-Acylated and O-Silylated Derivatives: New, Efficient and Highly Stereoselective Polyvinylogation Reagents