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Leaf coumarins from the Artemisia laciniata group
Author(s) -
Hofer Otmar,
Szabó Géza,
Greger Harald,
Nikiforov Alexej
Publication year - 1986
Publication title -
liebigs annalen der chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 0170-2041
DOI - 10.1002/jlac.198619861208
Subject(s) - coumarin , absolute configuration , artemisia , chemistry , botany , stereochemistry , organic chemistry , biology
The leaf coumarins of two provenances in the Artemisia laciniata complex were analysed in detail. Apart from the lacarol series previously published for that species, the two provenances afforded six new coumarin derivatives: The Chinese sample was mainly characterised by 5‐dimethylallyloxy‐7,8‐dimethoxycoumarin derivatives (neoartains) together with 5.6‐dimethoxy‐7,8‐methylenedioxycoumarin. The significant new compounds of the Japanese species were the 7‐dimethylallyloxy‐8‐methoxycoumarins (lacinartins). The structures were elucidated by spectroscopic methods (with the exception of the absolute configuration of optically active compounds).