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Morphine alkaloids (1)
D4EU-Dendromass4Europe; DATE/TIME; Depth, groundwater table; Event label; Latitude of event; Level sensor type PR-46X (KELLER); Longitude of event; MON; Monitoring; Sampling on land; Securing Sustainable Dendromass Production with Poplar Plantations in European Rural Areas; Site; SK-Land-2018-2022_Kopcany; SK-Land-2018-2022_Kopcany_S2-F; SK-Land-2018-2022_Kopcany_S4-D; SK-Land-2018-2022_Kopcany_S5-N; Slovakia, Europe; Soil matric potential, logarithm; Soil matric potential sensors TensioMark, length 125 mm, ceramic head (EcoTech GmbH); Soil moisture; Soil moisture sensors SM150T, frequency domain reflectometry type, with 51 mm rods (Delta -T Devices Ltd.); Temperature, soil; Throughfall; Tipping bucket
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6,14-Ethenomorphinans (1)

Electronic Resource

Reactions of Nepenthone with Chromium(II) Reagents in Neutral Aqueous Medium (1999)

Micskei, Károly ; Gyarmati, Julianna ; Kovács, Gábor ; [et al.]

Weinheim : Wiley-Blackwell

Liebigs Annalen 1999 (1999), S. 149-153

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ISSN: 1434-193X

Keywords: Morphine alkaloids ; 6,14-Ethenomorphinans ; Chromium(II) complex reagents ; Organochromium(III) complex intermediates ; Chemistry ; General Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: -A synthetic method for the selective transformations of a selected morphine alkaloid in neutral aqueous medium is introduced. Full diastereoselectivity was achieved by the transformation of nepenthone (1) with [Cr(ida)(H2O)3] into 2a (20R) showing a complementary method as compared to the reactions with classical reagents to result in 2b (20S). A new unexpected morphine derivative 3 was prepared by a ligand-induced modification of the reaction which involves an unprecedented rearrangement.

Additional Material: 2 Ill.

Type of Medium: Electronic Resource

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