T. Sala, M. V. Sargent
1979
Citations
0
Influential Citations
43
Citations
Journal
Journal of The Chemical Society-perkin Transactions 1
Abstract
The total synthesis of 4-formyl-3-hydroxy-8-methoxy-1,9-dimethyl-11-oxo-11H-dibenzo[b,e][1,4]dioxepin-6-carboxylic acid (psoromic acid)(28), a lichen depsidone, by selective functionalization of synthetic methyl 3,8-dimethozy-1,4,9-trimethyl-11-oxo-11H-dibbnzo[b,e][1,4]dioxepin-6-carboxylate (methyl O-methylhypopsoromate)(23) and subsequent steps, is described. Attention is drawn to the use of isopropyl ethers as phenol protective groups.