Sequential Reduction and Dehydration of Phenacyl-(<i>E</i>)-Styryl Sulfones to Unsymmetrical (<i>E</i>,<i>E</i>)-Bis(styryl) Sulfones
作者:M. V. Reddy、Muralidhar Reddy Mallireddigari、Venkat R. Pallela、E. Premkumar Reddy
DOI:10.1055/s-2005-918450
日期:——
β-Keto vinylic sulfones, the key building blocks for the synthesis of the title compounds, were prepared by two different routes. NaBH4 reduction of these compounds afforded β-hydroxy vinylic sulfones which were dehydrated with acetic anhydride and BF3·Et2O to obtain bis(styryl) sulfones. Alternatively, one-pot synthesis of these bis(styryl) sulfones was also achieved directly from β-keto vinylic sulfones by treating with NaBH4 in EtOH followed by refluxing with concentrated HCl.
Reddy, D. Bhaskar; Reddy, P. V. Ramana; Vijayalakshmi, S., Phosphorus, Sulfur and Silicon and the Related Elements, 1993, vol. 84, # 1-4, p. 63 - 72
作者:Reddy, D. Bhaskar、Reddy, P. V. Ramana、Vijayalakshmi, S.、Reddy, M. V. Ramana
DOI:——
日期:——
Reaction of alkenesulfonyl chlorides with olefins catalyzed by a ruthenium(II) complex. A novel method for synthesis of (E,E)-1,4-diaryl-1,3-butadienes