“…The reaction between cyclopentadienones and Nvinyl-2-hydroxyethylamine evolves ethanolamine (9). Trimethylvinylstannane, triethylvinylstannane, and triphenylvinylstannane have been allowed to react at elevated temperatures, i.e., 180-200°, and found to evolve trialkylor triphenylstannane (52,245,246).…”