Helvetica chimica acta

The Synthesis of Natural Acetylenic Compounds from Eutypa lata (Pers; F.) TUL

E Defranq, T Zesiger, R Tabacchi

Index: Defranq, Eric; Zesiger, Thierry; Tabacchi, Raffaele Helvetica Chimica Acta, 1993 , vol. 76, # 1 p. 425 - 430

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Citation Number: 35

Abstract

Abstract The synthesis of a series of novel acetylenic compounds 1–7, isolated recently from the fungus Eutypa lata, is described. The crucial step is the coupling reaction between a protected aryl halogenide and the acetylenic chain as a cuprous acetylide (Scheme 1). A more efficient method using bis (triphenylphosphine) palladium dichloride ([Pd (PPh 3) 2 Cl 2]) as catalyst was also carried out with success.

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The Synthesis of Natural Acetylenic Compounds from Eutypa la...

[Helvetica Chimica Acta, , vol. 76, # 1 p. 425 - 430]