The Stille Reaction of 1,1-Dibromo-1-alkenes: Preparation of Trisubstituted Alkenes and Internal Alkynes
作者:Wang Shen、Le Wang
DOI:10.1021/jo991116k
日期:1999.11.1
The Stille reaction of 1,1-dibromo-1-alkenes 1 with aryl- and vinylstannanes produces different products depending on the reaction conditions. When the reaction is run in toluene or 1,4-dioxane with tris(2-furyl)phosphine (TFP) as the ligand, (Z)-bromoalkenes 2 are obtained stereospecifically in good to excellent yields with most substrates. However, 2-aryl-1,1-dibromo-1-alkenes (1e,1g) having an electron-donating
Gold-catalyzed oxidative cleavage of aryl-substituted alkynyl ethers using molecular oxygen. Simultaneous degradation of C–H and single and triple carbon–carbon bonds under ambient conditions
作者:Arindam Das、Rupsha Chaudhuri、Rai-Shung Liu
DOI:10.1039/b908338c
日期:——
We report the gold-catalyzed oxidativecleavage of aryl-substituted alkynyl ethers using molecular oxygen under ambient conditions; the transformation involves a remarkable cleavage of C-H, C-C and C[triple bond, length as m-dash]C bonds simultaneously.