2-phenylthio-3,3,3-trifluoropropene, its sulfoxide or sulfone in Diels-Alder cycloadditions
作者:Martine Redon、Zdenek Janousek、Heinz G. Viehe
DOI:10.1016/s0040-4020(97)00328-1
日期:1997.5
The Diels-Alder reaction of 2-phenylthio-3,3,3-trifluoropropene 1 and its derivatives sulfoxide 2 and sulfone 3, respectively was carried out with cyclopentadiene, 2,3-dimethylbutadiene, butadiene and isoprene to give the [4+2] cycloadducts in good to excellent yields. The particular reactivity of 2-phenylsulfinyl-3,3,3-trifluoropropene 2 is revealed as an α,β-isomerisation via cycloaddition, sulfenic
分别与环戊二烯,2,3-二甲基丁二烯,丁二烯和异戊二烯进行2-苯基硫基3,3,3-三氟丙烯1及其衍生物亚砜2和砜3的Diels-Alder反应,得到[4 + 2 ]环加合物,收率好至极好。2-苯基亚磺酰基-3,3,3-三氟丙烯的特定反应性的2显露作为α,β异构化通过环加成,次磺酸消除readdition随后逆狄尔斯-阿尔德。