Diastereoselective addition of nitro compounds to α,β-unsaturated γ-butyrolactones
作者:Giovanni B. Rosso、Ronaldo A. Pilli
DOI:10.1016/j.tetlet.2005.10.163
日期:2006.1
Herein, we report our results on the diastereoselective addition of nitro compounds to α,β-unsaturated γ-butyrolactones, which afforded the corresponding Michael adducts 9–17 in moderate to good yields and good to excellent diastereoisomeric ratio. A one-pot conversion of α,β-unsaturated γ-butyrolactones 7 and 8 to the corresponding trisubstituted keto-γ-butyrolactones 24 and 25 via a tandem Michael–Nef
在此,我们报道了我们对非对映选择性加成硝基化合物到α,β不饱和γ丁内酯,得到相应的迈克尔加成物的结果9 - 17在中度至良好的产率和良好至优异的非对映异构比例。还描述了通过串联Michael-Nef协议将α,β-不饱和γ-丁内酯7和8一锅转换为相应的三取代的酮-γ-丁内酯24和25。