Efficient synthesis of 1,4-dihydronaphthalenelignans from 5-methylene-4-substituted-2(5H)-furanones and a concise synthesis of solafuranone
作者:Vishal A. Mahajan、Hanumant B. Borate、Radhika D. Wakharkar
DOI:10.1016/j.tet.2005.10.054
日期:2006.2
A short synthetic strategy for synthesis of lignan analogues involving 5-methylene-4-substituted-2(5H)-furanones as the key intermediates has been developed. Various lignansincluding the natural product solafuranone and analogues of dihydrotaiwanin C and deoxydehydropodophyllotoxin were synthesized in good yields.
Convenient synthesis of 5-methylene-4-substituted-2(5H)-furanones
作者:Vishal A. Mahajan、Popat D. Shinde、Hanumant B. Borate、Radhika D. Wakharkar
DOI:10.1016/j.tetlet.2004.12.040
日期:2005.2
A synthesis of novel 4-(substituted)benzyl-5-methylene-2(5H)-furanones involving Stobbecondensation of substituted aldehydes with ethyl levulinate followed by treatment with acetic anhydride in the presence of sodium acetate, has been developed.