126-90-9Relevant articles and documents
Monoterpene glycosides and triterpene acids from Eriobotrya deflexa
Lee,Lee,Kuo,Chou
, p. 865 - 869 (2001)
A phytochemical study on a methanolic extract of leaves of Eriobotrya deflexa led to the isolation and characterization of nine terpenoid compounds. Four of these are new chemical entities, including two monoterpene glycosides, (3S)-O-α-L-rhamnopyranosyl-(1→3)-[4-O-(E)-coumaroyl]- α-L-rhamnopyranosyl-(1→6)-β-D-glucopyranosyl-linalool (1) and (3S)-O-α-L-rhamnopyranosyl-(1→3)-[4-O-(Z)-coumaroyl]-α-L- rhamnopyranosyl-(1→6)-β-D-glucopyranosyl-linalool (2), and two triterpene acids, 1β,2α,19α-trihydroxy-3-oxo-12-ursen-28-oic acid (3) and 2α,3α,19α-trihydroxy-12-oleanen-28-oic acid (4). Their structures were elucidated on the basis of spectroscopic analysis. The activities of these isolates in an in vitro antiproliferation test were also determined.
Effects of host plant, Gossypium hirsutum L., on sexual attraction of cabbage looper moths, Trichoplusia ni (Hubner) (Lepidoptera: Noctuidae)
Landolt,Heath,Millar,Davis-Hernandez,Dueben,Ward
, p. 2959 - 2974 (1994)
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Metal-organic framework Co(D-cam)1/2(bdc)1/2(tmdpy) for improved enantioseparations on a chiral cyclodextrin stationary phase in gas chromatography
Liu, Hong,Xie, Sheng-Ming,Ai, Ping,Zhang, Jun-Hui,Zhang, Mei,Yuan, Li-Ming
, p. 1103 - 1108 (2014/11/07)
Initial efforts to combine a chiral metal-organic framework (MOF), Co(D-Cam)1/2(bdc)1/2(tmdpy) (D-Cam=D-camphoric acid, bdc=1,4-benzenedicarboxylic acid, tmdpy=4,4′-trimethylenedipyridine), with peramylated β-cyclodextrins to investigate whether the use of a MOF can enhance enantioseparations on a cyclodextrin stationary phase are reported. Compared with columns of peramylated β-cyclodextrin incorporated in a MOF containing sodium chloride, the column of peramylated β-cyclodextrin+MOF shows excellent selectivity for the recognition of racemates, and higher resolutions are achieved on the peramylated β-cyclodextrin+MOF stationary phase. Experimental results indicate that the use of Co(D-Cam) 1/2(bdc)1/2(tmdpy) can improve enantioseparations on peramylated β-cyclodextrins. This is the first report that chiral MOFs can improve enantioseparations on a chiral stationary phase for chromatography. Copyright
Synthesis and reactions of the optically active selenols derived from monoterpenes Dedicated to Professor Jacek Gawronski on the occasion of his 70th birthday
Scianowski, Jacek,Rafalski, Jaroslaw,Banach, Anna,Czaplewska, Justyna,Komoszynska, Anna
, p. 1089 - 1096 (2013/10/08)
A convenient methodology for the synthesis of optically active selenols, derived from p-menthane, carane, and pinane, is described. The selenols were oxidized with air to give the optically active diselenides, and were also converted into the corresponding allylic selenides via reaction with Z- and E-cinnamyl, geranyl, and neryl chlorides. Oxidation of the allylic selenides with mCPBA gave the optically active alcohols via [2,3]-sigmatropic rearrangement of the in situ generated allylic selenoxides.