Diastereoselective Synthesis of Fused Lactone-Pyrrolidinones; Application to a Formal Synthesis of (−)-Salinosporamide A
摘要:
A mild, diastereoselective synthesis of fused lactone-pyrrolidinones using an oxidative radical cyclization is reported. The methodology is demonstrated in a formal synthesis of (-)-salinosporamide A.
Diastereoselective Synthesis of Fused Lactone-Pyrrolidinones; Application to a Formal Synthesis of (−)-Salinosporamide A
摘要:
A mild, diastereoselective synthesis of fused lactone-pyrrolidinones using an oxidative radical cyclization is reported. The methodology is demonstrated in a formal synthesis of (-)-salinosporamide A.
We report herein a direct method to synthesize 4-aryl-3-butenoic acid through a carboxylic-acid-directed oxidative Heck reaction. The various 4-aryl-3-butenoic acids are easily prepared in moderate to good yields. In view of the promising bioactivity of 4-phenyl-3-butenoic acid previously reported, its derivatives reported here may be bioactive.
Synthesis of bicyclic tetrahydrofurans from linear precursors using manganese(<scp>iii</scp>) acetate
作者:Anne-Caroline Chany、Léo B. Marx、Jonathan W. Burton
DOI:10.1039/c5ob01091h
日期:——
Cyclisation of a range of alkoxy-malonates in the presence of manganese(iii) acetate gives rise to bicyclic lactone/THFs and lactone/lactones in synthetically useful yields and diastereoselectivities.