14554-13-3Relevant articles and documents
Triterpenoid Ketones from Lingnania chungii McClure: Arborinone, Friedelin and Glutinone
Akihisa, Toshihiro,Yamamoto, Kazuhiro,Tamura, Toshitake,Kimura, Yumiko,Iida, Takashi,et al.
, p. 789 - 791 (2007/10/02)
The powder coating of a bamboo, Lingnania chungii McClure (= Bambusa chungii) was found to be a rich source of the 3-oxo pentacyclic triterpenes (25percent on the recovery basis by chromatography on silica gel) which contained friedelin, arborinone and glutinone as the major components accompanied by minor amounts of α- and β-amyrenones.A simple procedure for isolation of the friedelin is described.All proton and carbon-13 nuclear magnetic resonance signals for arborinone, friedelin and glutinone were assigned.Keywords Lingnania chungii; Bambusa chungii; Gramineae; arborinone; friedelin; glutinone; 1H-NMR; 13C-NMR
Terpenoids and Related Compounds: Part XXXI - Stereospecific Reduction of Triterpenoid Ketones with Lithium and Ethylenediamine
Sengupta, Pasupati,Das, Saktipada,Das, Kanchan
, p. 1113 - 1114 (2007/10/02)
Hindered triterpenoid ketones are reduced in excellent yields to the corresponding thermodynamically more stable alcohols on stereospecific reduction with lithium and ethylenediamine.