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--- philadelphus_coronarius_l [2021/06/30 15:15] – andreas
+++ philadelphus_coronarius_l [2024/09/03 07:04] (aktuell) – andreas
@@ Zeile 10: / Zeile 10: @@
 Major constituents of the vacuum headspace concentrate of the flower volatiles were acetophenone (20%), linalool oxides (11.5%), and indole (10%). Among the minor constituents were 2-aminobenzaldehyde (2%), benzothiazole (1%), jasmone (trace), and (Z)-hexenyl benzoate (trace). \\
 [Joulain, D. „Study of the fragrance given off by certain springtime flowers.“ Progress in essential oil research (1986): 57-67]
+| {{:acetophenone.jpg| acetophenone}} \\ acetophenone | {{:indole.jpg| indole}} \\ indole \\ //(sweet floral)// | {{:2-aminobenzaldehyde.jpg| 2-aminobenzaldehyde}} \\ 2-aminobenzaldehyde \\ //(sweet orange flower)// | {{:myrtenal.png| myrtenal}} \\ myrtenal \\ //(sweet spicy)// | {{:14dihydro2me31benzoxazine.png|1,4-Dihydro-2-methyl-2H-3,1-benzoxazine}} \\ 1,4-dihydro-2-methyl-2H-3,1-benzoxazine \\ //(quinoline-like)// |
 Trans-myrtanal (46%), cis-myrtanal (2.2%), myrtenal, myrtenol, indole, nopinone (5.3%), 2-aminobenzaldehyde (11%), 2-formamidobenzaldehyde and veratraldehyde have been determined in the headspace of living flowers by GC-MS analysis. Flowers from another single plant showed an entirely different composition with hugh amounts of acetophenone (20%) and indole (10%). \\
 [The composition of the headspace from fragrant flowers: Further results., Joulain D., Flavour and Fragrance J 1987; 2: 149-155]
-| {{:myrtenal.png| myrtenal}} \\ myrtenal \\ //(sweet spicy)// | {{:indole.jpg| indole}} \\ indole \\ //(sweet floral)// | {{:2-aminobenzaldehyde.jpg| 2-aminobenzaldehyde}} \\ 2-aminobenzaldehyde \\ //(sweet orange flower)// | {{:14dihydro2me31benzoxazine.png|1,4-Dihydro-2-methyl-2H-3,1-benzoxazine}} \\ 1,4-dihydro-2-methyl-2H-3,1-benzoxazine \\ //(quinoline-like)// |
 ,4-Dihydro-2-methyl-2H-3,1-benzoxazine (odor: quinoline-like) as the cyclic product of anthranilic alcohol and acetaldehyde is found in the vacuum headspace concentrate of a P.coronarius flowers variety in amounts of 0.2-1%. In pure form it cleaves acetaldehyde in perceptible amounts. \\