A Stereoselective Synthesis of (<i>E</i>)-α-Stannylvinyl Sulfones via Palladium-Catalyzed Hydrostannylation of Acetylenic Sulfones
作者:Mingzhong Cai、Guiqin Chen、Wenyan Hao、Dong Wang
DOI:10.1055/s-2006-958432
日期:2006.12
Palladium-catalyzed hydrostannylation of acetylenic sulfones with Bu3SnH in benzene at room temperature afforded stereoselectively (E)-α-stannylvinyl sulfones in good to high yields.
A facile stereoselective synthesis of 1,3-dienyl sulfones via Stille coupling reactions of (E)-α-stannylvinyl sulfones with alkenyl iodides
作者:Ming-Zhong Cai、Gui-Qin Chen、Wen-Yan Hao、Dong Wang
DOI:10.1016/j.jorganchem.2006.11.014
日期:2007.2
Palladium-catalyzed hydrostannylation of acetylenic sulfones 1 in benzene at room temperature gives stereoselectively (E)-α-stannylvinyl sulfones 2 in good yields. (E)-α-Stannylvinyl sulfones 2 are new difunctional group reagents which undergo Stille coupling reactions with alkenyl iodides 3 to afford stereoselectively 1,3-dienyl sulfones 4 in high yields.
Highly Regio- and Stereoselective Synthesis of (1<i>Z</i>,3<i>E</i>)-2-sulfonyl-3-stannyl-1,3-dienes by hydrostannylation of (<i>Z</i>)-2-sulfonyl-1,3-enynes
作者:Shiyun Xie、Ji Xu、Tao Yan、Mingzhong Cai
DOI:10.3184/174751913x13816588007726
日期:2013.11
The Stille coupling of (E)-alpha-stannylvinyl sulfones with alkynyl bromides in DMF in the presence of Pd(PPh3)(4) and CuI gave (Z)-2-sulfonyl-1,3-enynes in good yields. (Z)-2-Sulfonyl-1,3-enynes underwent palladium-catalysed hydrostannylation with tributyltin hydride to afford highly regio- and stereoselectively (1Z,3E)-2-sulfonyl-3-stannyl-1,3-dienes.