Nucleophilic α-addition to β-nitroacrylates: application to the synthesis of α-thioacrylates
作者:Elzbieta Lewandowska
DOI:10.1016/j.tet.2006.03.015
日期:2006.5
The α-addition of alkyl or aryl thionucleophiles to β-nitro-α,β-unsaturated alkenoates in THF in the presence of TEA or DBU gave access to the α-thio-α,β-unsaturated alkenoates. The reaction occurred via formation of β-nitro-α-thioalkanoates and concomitant elimination of nitrous acid from the α-adducts.
在TEA或DBU存在下,在THF中将烷基或芳基硫代亲核试剂α加成到β-硝基-α,β-不饱和链烯酸酯上可以得到α-硫代-α,β-不饱和链烯酸酯。该反应通过形成β-硝基-α-硫代链烷酸酯并伴随从α-加合物消除亚硝酸而发生。