citronellal การใช้
- Citronellal is a major lemon-scented teatree.
- Citronellal has insect repellent properties, and research shows high repellent effectiveness against mosquitoes.
- Research shows that citronellal has strong antifungal qualities.
- Some commercial PMD products are not made from " C . citriodora " oil, but rather from synthetic citronellal.
- The process begins by forming an allylic amine from myrcene, which undergoes asymmetric isomerisation in the presence of a BINAP rhodium complex to give ( after hydrolysis ) enantiomerically pure " R "-citronellal.
- The ( )-( " S " )-enantiomer of citronellal makes up to 80 % of the leaf oil from kaffir lime leaves and is the compound responsible for its characteristic aroma.
- The first total synthesis, reported in 2009, employed an ( + )-citronellal ) reported in 2015 shortened the synthetic sequence, with a double Michael addition as the key transformation of eight steps, allowing the synthesis of gram-scale quantities of jiadifenolide.
- From a stereochemical point of view, it is remarkable that kaffir / makrut lime leaves contain only the ( " S " ) stereoisomer of citronellal, whereas its enantiomer, ( + )-( " R " )-citronellal, is found in both lemon balm and ( to a lesser degree ) lemon grass, ( note, however, that citronellal is only a trace component in the latter's essential oil ).
- From a stereochemical point of view, it is remarkable that kaffir / makrut lime leaves contain only the ( " S " ) stereoisomer of citronellal, whereas its enantiomer, ( + )-( " R " )-citronellal, is found in both lemon balm and ( to a lesser degree ) lemon grass, ( note, however, that citronellal is only a trace component in the latter's essential oil ).
- From a stereochemical point of view, it is remarkable that kaffir / makrut lime leaves contain only the ( " S " ) stereoisomer of citronellal, whereas its enantiomer, ( + )-( " R " )-citronellal, is found in both lemon balm and ( to a lesser degree ) lemon grass, ( note, however, that citronellal is only a trace component in the latter's essential oil ).