Structure and synthesis of two novel ionone-type compounds identified in quince brandy (Cydonia oblonga Mil.)

✍ Scribed by Regula Näf; Alain Velluz; René Decorzant; Ferdinand Näf

• Publisher: Elsevier Science
• Year: 1991
• Tongue: French
• Weight: 246 KB
• Volume: 32
• Category: Article
• ISSN: 0040-4039
• DOI: 10.1016/s0040-4039(00)74876-3

✦ Synopsis

S~lmmary Two new lonone-type compounds (1 and 2) were Isolated from quince brandy (Cydon~ oblongn Ml1 ) and their structures deduced from spectroscopic data and confumed by synthe~l~ 13C-, 'H-NMR dnd MS data as well as olfactlve propemes of 1 and 2 are given In the dnalysls of the brdndy of quince frutt [ l] 121 (C$onla oblongu Ml1 ), the two novel acetals 1 [ ?] 141 ,ind 2 [43 with nn lonone skeleton were Identified The extract, prepxed by continuous extraction of the diluted brandy with ether, was separated on s111ca gel (60, Merck, 0 040-O 063, 230-400 mesh) with pentaneiether = 9/l The two new acetdls were In n trdLtlon WII~ dn Rt_O 17 (pentane/ether = 9/l) On GC (Ldpllldry coltmn, Supelcownx, 60 1x1, 0 25 mm ID 80-220"c iO/mrr