Results 161 to 170 of about 2,322 (214)

Chemistry of the podocarpaceae—XI

Tetrahedron, 1966
Abstract Totarol, podototarin, podocarpic acid, β-sitosterol, and campesterol have been isolated from, or identified as constituents of, the heartwoods of Podocarpus nivalis and P. acutifolius. The former species also contains methyl podocarpate, the n-alkanes with chain length C13, C14, and C21C31 inclusive, and a new bisditerpenoid which has been ...
C.R. Bennett, R.C. Cambie
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Leaf morphometry of six Podocarpaceae species from Peru: A contribution to their taxonomic identification

Lilloa
The present study evaluated the potential use of leaf morphometry for the taxonomic identification of six Podocarpaceae species. We collected botanical samples from 17 forests across five departments in northern, central, and southern Peru (Cajamarca ...
José Antonio Ramírez-Peralta, Evelin Judith Salazar-Hinostroza, J. R. Baselly-Villanueva, L. D. Huayta-Hinojosa, I. Huamantupa-Chuquimaco   +4 more
semanticscholar   +1 more source

Dacrycarpoides, a new genus of extinct Podocarpaceae (Coniferales) from the early Miocene of New Caledonia.

American-Eurasian journal of botany
PREMISE The archipelago of New Caledonia contains one of the world's most distinctive biotas. The presence of notable paleoendemics in this biota suggests that Gondwanan vicariance may have played an important role in its formation, but geological ...
Nidhi U Patel, D. Cantrill, Peter R. Crane, R. Garrouste, P. Lowry, P. Maurizot, Jérôme Munzinger, Andrew B Leslie   +7 more
semanticscholar   +1 more source

Chemistry of the podocarpaceae

Journal of Organometallic Chemistry, 1986
Abstract A pentacarbonylcarbene chromium complex of the diterpenoid methyl O-methylpodocarpate has been prepared and its reactions with some alkynes have been studied with the aim fo synthesising ring-C aromatic steroids. The use of diphenylacetylene resulted in cyclisation to give steroidal derivatives in moderate yield.
Richard C. Cambie, Peter S. Rutledge, Moana Tercel, Paul D. Woodgate   +3 more
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Occurrence download Podocarpaceae

2023
ALA occurrence record ...
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Dendrochronological potential of Prumnopitys andina (Podocarpaceae) at the southern limit of its range in the Chilean Andes

, 2021
Prumnopitys andina is a South American podocarp with a restricted distribution in southern Andean temperate forests, and is severely threatened due to habitat loss.
C. Álvarez, C. Le Quesne, M. Rojas-Badilla, V. Rozas, Á. González-Reyes   +4 more
semanticscholar   +1 more source

Chemistry of the podocarpaceae—XVI

Tetrahedron, 1968
Abstract Treatment of 6α-bromo-7-oxototaryl acetate (II, R = OAc) with NaHCo 3 /DMSO gives 6α-bromo-7-oxototarol (II, R = OH, 5%), Δ 5 -dehydro-7-oxototaryl acetate (III, R = OAc, 45%), Δ 5 - dehydro-7-oxototarol (III, R = OH, 15%), and by fission of the dA/B ring junction, 7-oxo-5,10-secototara- 5,8,10(20),11,13-penataen-13-ol (IV, R = H, 5%).
R.C. Cambie, R.T. Gallagher
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Chemistry of the podocarpaceae—III

Tetrahedron, 1959
Abstract A new lignan for which the name seco-isolariciresinol is proposed, has been isolated from the heartwood of Podocarpus spicatus. The structure has been shown to be 2:3-bis(4′-hydroxy-3′- methoxybenzyl)-butan-1:4-diol (II, R = H), and confirmed by an absolute synthesis from (−)-matairesinol (I, R = H).
L.H. Briggs, R.C. Cambie, J.L. Hoare
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Anthocyanins of the podocarpaceae

Phytochemistry, 1972
Abstract In the Podocarpaceae anthocyanins occur in some vegetative organs, and in seed-bearing structures where they have a comparable role to angiosperm fruit pigments. Pelargonidin and peonidin are recorded for the first time from gymosperms and several species contain pigments with an unusual substituent that confers highly characteristic ...
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Chemistry of the podocarpaceae—VII

Tetrahedron, 1963
Abstract Totarol (I,R  CH3), 16-hydroxytotarol (I,R  CH2OH) 16-oxototarol (I,R  CH:O), sugiol, podocarpic acid, and two unidentified compounds have been isolated from the heartwood of Podocarpus hallii. The structure (II, R  H) of podototarin, found in P. totara but not in P.
R.C. Cambie, W.R.J. Simpson, L.D. Colebrook   +2 more
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