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robinia_pseudoacacia_l [2017/03/30 12:38]
andreas 		robinia_pseudoacacia_l [2017/03/30 12:40]
andreas
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 Major constituents of the vacuum headspace concentrate from the flowers were 2-aminobenzaldehyde (31.5%), methyl anthranilate (14.6%), linalool/phenylethanol (18% together), nerolidol (5.3%), α-farnesene (5.1%), and (E)-ocimene (4.4%). "It should be noted that the mass spectrum of 2-aminobenzaldehyde is very clos to that of formanilide proposed by most of the commercial mass spectra librabries." \\ Major constituents of the vacuum headspace concentrate from the flowers were 2-aminobenzaldehyde (31.5%), methyl anthranilate (14.6%), linalool/phenylethanol (18% together), nerolidol (5.3%), α-farnesene (5.1%), and (E)-ocimene (4.4%). "It should be noted that the mass spectrum of 2-aminobenzaldehyde is very clos to that of formanilide proposed by most of the commercial mass spectra librabries." \\
 [Joulain, D. „Study of the fragrance given off by certain springtime flowers.“ Progress in essential oil research (1986): 57-67]  [Joulain, D. „Study of the fragrance given off by certain springtime flowers.“ Progress in essential oil research (1986): 57-67] 
 +
 +| {{:methylanthranilate.jpg| methyl anthranilate}} \\ methyl anthranilate | {{:2-aminobenzaldehyde.jpg| 2-aminobenzaldehyde}} \\ 2-aminobenzaldehyde | {{:carene_d3.jpg| δ-3-carene }} \\ δ-3-carene | {{:linalool.jpg| linalool}} \\ linalool | 
  
 "The floral fragrance headspace of living Robinia pseudoacacia was trapped on Tenax tube cartridges using air as the carrier. After solvent elution, the major components identified using GC/MS were [[http://www.thegoodscentscompany.com/data/rw1014471.html|δ-3-carene]] (54.6%), linalool (21%), (Z)-β-farnesene (3.0%) and anthranilate aldehyde (3.9%)." \\ "The floral fragrance headspace of living Robinia pseudoacacia was trapped on Tenax tube cartridges using air as the carrier. After solvent elution, the major components identified using GC/MS were [[http://www.thegoodscentscompany.com/data/rw1014471.html|δ-3-carene]] (54.6%), linalool (21%), (Z)-β-farnesene (3.0%) and anthranilate aldehyde (3.9%)." \\
 [Characterization of black locust floral fragrance. Kamdem, D. P., Gruber, K., Barkman, T., Gage, D. A., Journal of Essential Oil Research, 6(2), 1994, 199-200] [Characterization of black locust floral fragrance. Kamdem, D. P., Gruber, K., Barkman, T., Gage, D. A., Journal of Essential Oil Research, 6(2), 1994, 199-200]
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-| {{:carene_d3.jpg| δ-3-carene }} \\ δ-3-carene | {{:linalool.jpg| linalool}} \\ linalool | {{:2-aminobenzaldehyde.jpg| 2-aminobenzaldehyde}} \\ 2-aminobenzaldehyde \\ (anthranilate aldehyde) |  
  
 Feeding experiments with 13C- and fluorine-labelled precursors revealed that the biosynthesis of 2-aminobenzaldehyde in flowers of Robinia pseudoacacia and Philadelphus coronarius is realized by transformation of anthranilic acid to indole followed by oxidative ring opening and hydrolysis of the resulting N-formyl-2-aminobenzaldehyde. \\ Feeding experiments with 13C- and fluorine-labelled precursors revealed that the biosynthesis of 2-aminobenzaldehyde in flowers of Robinia pseudoacacia and Philadelphus coronarius is realized by transformation of anthranilic acid to indole followed by oxidative ring opening and hydrolysis of the resulting N-formyl-2-aminobenzaldehyde. \\
robinia_pseudoacacia_l.txt · Zuletzt geändert: 2022/06/07 11:51 von andreas

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