A new class of quinones from certain members of the family Cyperaceae

✍ Scribed by R.D. Allan; R.L. Correll; R.J. Wells

• Publisher: Elsevier Science
• Year: 1969
• Tongue: French
• Weight: 209 KB
• Volume: 10
• Category: Article
• ISSN: 0040-4039
• DOI: 10.1016/s0040-4039(01)88778-5

✦ Synopsis

Chemical esamin ation of the ctlperaooae has been cursory although the family contains 3200 speoies within 75 genera. We wish to report the isolation of five new &nones from the roots and rhizomes of soma tropical Australian representatives. These pigments, for which we propose the name Cyperaguinones, oostaiu the [1,2-b: 5,4-b'] behzodifuran ring system (I) and, to our knowledge , are the first representatives of this class of oompxmd found in nature. Four of the 35 species (representing 10 genera of C#smosael screened to date have been found to contain guinoues. These quinones were extracted with cold ether aud separated by a