The Constituents of Essential Oil from Siegesbeckia pubescens Makino
1987 Volume 36 Issue 9 Pages 667-670
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1987 Volume 36 Issue 9 Pages 667-670
The essential oil from leaves of Menamomi (Siegesbeckia pubescens Makino) has been studied. The constituents were separated by means of conbination of elution chromatography and preparative gas chromatography and were identified by MS, UV, IR and NMR.
Six sesquiterpene hydrocarbones (60.8%), eight sesquiterpene alcohols (23.1%), ten acethylenic aldehydes and alcohols (9.7%) and cis-3-hexen-1-ol (3.8%) were recognized as the constituents of the essential oil.
The main components were germacrene-D, δ-cadinene, spathulenol, copaborneol, T-muurolol α-cadinol, germacra-4 (15), 5 (E), 10 (14) -trien-1-ol (2), cis-7, trans-12, trans-14-hexadecatrien-10-ynal (1) and cis-9, trans-14, trans-16-octadecatrien-12-ynal.
