A Protecting-Group-Free Synthesis of Hagen’s Gland Lactones
摘要:
A practical protecting group free synthesis of Hagen's gland lactones 1 and 2 is accomplished in four steps and 25.6 and 37.4% overall yields, respectively. The strategy relies on a one-pot conversion of D-glucono-delta-lactone to beta-hydroxy-gamma-vinyl-gamma-lactone, cross-metathesis, and iodocyclization-deiodinization as key steps.
A Protecting-Group-Free Synthesis of Hagen’s Gland Lactones
作者:Rodney A. Fernandes、Pullaiah Kattanguru
DOI:10.1021/jo301465z
日期:2012.10.19
A practical protecting group free synthesis of Hagen's gland lactones 1 and 2 is accomplished in four steps and 25.6 and 37.4% overall yields, respectively. The strategy relies on a one-pot conversion of D-glucono-delta-lactone to beta-hydroxy-gamma-vinyl-gamma-lactone, cross-metathesis, and iodocyclization-deiodinization as key steps.