Synthesis of types II and III cyanolipids

✍ Scribed by Mugio Nishizawa; Kenji Adachi; Yuji Hayashi

• Publisher: Elsevier Science
• Year: 1983
• Tongue: French
• Weight: 221 KB
• Volume: 24
• Category: Article
• ISSN: 0040-4039
• DOI: 10.1016/s0040-4039(00)85922-5

✦ Synopsis

Types II and III cyanolipids, which show an insecticidal activity, are synthesized by a very simple procedure. Esterification of fatty acid salts with 1,3-dibromoacetone or bromoacetone using a phase-transfer catalyst in non-polar solvent, followed by Wittig condensation, provided a variety of cyanolipids in high yield. Cyanolipids are a unique class of plant lipids classified into four types I-IV2, characteristic to seed oil of Sapindaceous plants. Recently, we have established full structures of three kinds of type II cyanolipids, N-IIb (s), N-IIc (&I, and N-IId (la), after complete purification by careful fraction-1 ation with the reverse-phase