Depsidone synthesis. Part 19. Some β-orcinol depsidones
作者:Tony Sala、Melvyn V. Sargent
DOI:10.1039/p19810000877
日期:——
The synthesis of the lichen depsidones 3,8-dihydroxy-1,4,6,9-tetramethyl-11-oxo-11H-dibenzo[b,e][1,4]-dioxepin-7-carboxylic acid (hypoprotocetraric acid)(4), 8-hydroxy-3-methoxy-1,4,6,9-tetramethyl-11-oxo-11H-dibenzo[b,e][1,4]dioxepin-7-carboxylic acid (O-methylhyprprotocetraric acid)(5), 4-formyl-3,8-dihydroxy-1,6,9-trimethyl-11-oxo-11H-dibenzo[b,e][1,4]dioxepin-7-carboxylic acid (virensic acid)(6)
地衣二萜3,8-dihydroxy-1,4,6,9-tetramethyl-11-oxo-11 H -dibenzo [ b,e ] [1,4] -dioxepin-7-羧酸(次戊四酸)的合成)(4),8-羟基-3-甲氧基- 1,4,6,9四甲基-11-氧代-11- ħ -二苯并[ b,ë ] [1,4]二氧杂环庚烯-7-羧酸(ø - (5),4-甲酰基-3,8-二羟基-1,6,9-三甲基-11-氧代-11 H-二苯并[ b,e ] [1,4]二氧己环-7-羧酸( (6)和4-甲酰基-3,8-二羟基-9-羟甲基-1,6-二甲基-11-氧代-11 H-二苯并[ b,e描述了] [1,4]二氧杂庚酮-7-羧酸(原对苯二甲酸)(7)。