Double cycloadditive macrocyclisation of bis-hydrazonoyl chlorides 5 were performed with bis-allyl ethers 9 and 10, bis-vinyl ether 14 and bis-propargyl ether 18. The title compounds having a 18-, 19-, 22- or 24- membered ring annulated to the pyrazole units were obtained with good overall yield.
Synthesis of Bis-(3,5)Pyrazolophanes via Double Cycloadditive Macrocyclisation
Pilati T;Ponti A
2003
Abstract
Double cycloadditive macrocyclisation of bis-hydrazonoyl chlorides 5 were performed with bis-allyl ethers 9 and 10, bis-vinyl ether 14 and bis-propargyl ether 18. The title compounds having a 18-, 19-, 22- or 24- membered ring annulated to the pyrazole units were obtained with good overall yield.File in questo prodotto:
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Descrizione: Synthesis of Bis-(3,5)Pyrazolophanes via Double Cycloadditive Macrocyclisation
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