Helvetica Chimica Acta

Synthese der Phoracantholide K, O und M

H Gerlach, P Künzler

Index: Gerlach, Hans; Kuenzler, Peter Helvetica Chimica Acta, 1980 , vol. 63, # 8 p. 2312 - 2319

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Citation Number: 6

Abstract

Summary Two 14membered ring lactones 3 and 4 and a 12membered ring lactone 5 isolated from the metasternal secretion of the eucalypt longicorn Phoracantha synonymu have been synthesized as racemic mixtures by the following method. Reaction of the dilithium derivative of 5-hexynoic acid (6) with threo-8-bromo-2, 4- isopropylidenedioxyoctane (7), followed by removal of the protecting group and ...