31P NMR Characterization of Tricin and Its Structurally Similar Flavonoids
作者： Mi Li , Yunqiao Pu , Timothy J. Tschaplinski , Arthur J. Ragauskas
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摘要: Abstract: Tricin, a flavonoid metabolite, has been recently identified as component of lignin in select monocot plants. This finding initiated consideration on updating the biosynthesis pathway. We here report rapid method determination tricin corn stover lignin, based 31P nuclear magnetic resonance (NMR) spectroscopy by phosphitylating with 2-chloro-4,4,5,5-tetramethyl-1,3,2-dioxaphospholane (TMDP). Nine other flavonoids, similar structure to tricin, have also examined using current method. The application 31P NMR enables identification tricin-like flavonoids heterogeneous polymer. well resolved spectroscopic peaks from these derivatized and functional groups provide important information for individually or their association lignin.
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