64635-44-5Relevant academic research and scientific papers
REVISED STRUCTURE AND SYNTHESIS OF PIPEROLEIN ACIDS, GUINEENSINE AND WISANINE FROM PIPER GUINEENSE
Okwute, S. K.,Okogun, J. I.,Okorie, D. A.
, p. 2541 - 2546 (2007/10/02)
The structures of piperolein acids guineensine and wisanine have been confirmed by synthesis.UV irradiation of trans piperolein B acid ester gave the cis-isomer reported in the literature as the trans-isomer.The trans-2, trans-4 ethylenic bonds in guineensine and wisanine were introduced by reacting piperolein B aldehyde and 2-methoxy piperonal with the appropriate Wittig or Reformatsky reagent.
