New Annulation Techniques; Condensations of Phosphonium Ylides and Substituted 2 H ‐Pyran‐5‐carboxylates; Preparation of Cyclohexenonedicarboxylates and Cyclohexadienedicarboxylates | Zendy

Moorhoff Cornelis M. | Zendy

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New Annulation Techniques; Condensations of Phosphonium Ylides and Substituted 2 H ‐Pyran‐5‐carboxylates; Preparation of Cyclohexenonedicarboxylates and Cyclohexadienedicarboxylates

Author(s) -

Moorhoff Cornelis M.

Publication year - 2003

Publication title -

journal of the chinese chemical society

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.329

H-Index - 45

eISSN - 2192-6549

pISSN - 0009-4536

DOI - 10.1002/jccs.200300064

Subject(s) - chemistry , phosphonium , alkyl , pyran , annulation , organic chemistry , medicinal chemistry , catalysis

Substituted alkyl 2 H ‐pyran‐5‐carboxylates condensed with alkyl 3‐oxo‐4‐(triphenylphosphoranylidene)butanoate and alkyl 4‐(triphenylphosphoranylidene)‐2‐butenoate to form substituted 2‐vinyl‐6‐oxo‐4‐cyclohexene‐1,3‐dicarboxylates, some of which showed ecto‐parasiticidal activity in pets and cattle, and substituted 2‐vinyl‐3,5‐cyclohexadiene‐1,3‐dicarboxylates, respectively. The last mentioned product is in marked contrast to the product obtained using the corresponding arsonium analogue.

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