Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Johannes Dasenbrock"'
Publikováno v:
Applied Energy. 242:674-683
Decentralization of energy generations in power distribution systems is recognized as an important development strategy to incorporate more small-scale renewable sources, reduce greenhouse gas emissions and increase energy efficiency. Beside integrat
Autor:
Johannes Dasenbrock, Martin Braun, Matthias Haslbeck, Jan-Hendrik Menke, Chenjie Ma, Karl-Heinz Schmid
Publikováno v:
Applied Energy. 256:113907
The transition of the conventional energy supply scheme, typically characterized by integration of more small-scale renewable sources and reduction of greenhouse gas emissions, is an inevitable trend. At the same time, efficient operation of the exis
Autor:
Wolfgang Steglich, Johannes Dasenbrock, Bert Steffan, Yuekui Wang, Jörg Fleischhauer, Gerhard Raabe, Martin Bröckelmann
Publikováno v:
European Journal of Organic Chemistry. 2004:4856-4863
A unique set of thiomethylated canthin-6-one derivatives was isolated from Boletus curtisii. The bright yellow color of this mushroom is caused by two optically active canthin-6-one sulfoxides for which the names curtisin and 9-deoxycurtisin are prop
Autor:
Wolfgang Steglich, Claudia Gräf, Lydia Kahner, Veronika Hellwig, Johannes Dasenbrock, Susanne Schumann
Publikováno v:
European Journal of Organic Chemistry. 2002:2895-2904
Boletus calopus and closely related mushrooms of the Boletus section Calopodes are characterized by their bitter taste, which is caused mainly by O-acetylcyclocalopin A (6a), a member of a series of unique δ-lactone derivatives. Besides the simple l
Autor:
Bert Steffan, Timm Anke, Dörte Klostermeyer, Wolfgang Steglich, Veronika Hellwig, Stefan Kroiß, Sylvia Semar, Michaela Engler-Lohr, Peter Spiteller, Johannes Dasenbrock, Tilman Sindlinger
Publikováno v:
Tetrahedron. 55:10101-10118
The new antifungal strobilurins I (1) and K (19) are 3,4-dihydro-2H-benzo[b][1,4]dioxepin derivatives. Their structure and stereochemistry was determined by degradation to aldehyde 3. Both enantiomers of 3 were synthesised and the absolute configurat
Autor:
K. Leonhardt, Susanne Schumann, Wolfgang Steglich, Timm Anke, Veronika Hellwig, Johannes Dasenbrock
Publikováno v:
European Journal of Organic Chemistry. 1998:73-79
Arthrosporone (1) and eight new triquinane-type sesquiterpenoids have been isolated from mycelial cultures of the agaric Macrocystidia cucumis. The cucumins A−D (2, 4−6) are highly unsaturated hirsutane derivatives, whereas the cucumins E−G (7
Publikováno v:
Natural Product Letters. 4:209-216
Pleurotin, dihydropleurotinic acid and leucopleurotin, metabolites previously isolated from cultures of a Hohenbuehelia species, were obtained from cultures of the nematode-trapping deuteromycete Nematoctonus robustus. Crystals suitable for X-ray ana
Publikováno v:
Zeitschrift für Naturforschung C. 48:545-549
A new hirsutane derivative, phellodonic acid (1), has been isolated from fermentations of Phellodon melaleucus strain 87113. Its structure was elucidated by spectroscopic methods. The compound exhibits antibiotic activities towards bacteria and fungi
Autor:
Veronika Hellwig, Timm Anke, K. Leonhardt, Susanne Schumann, Wolfgang Steglich, Johannes Dasenbrock
Publikováno v:
ChemInform. 29
Arthrosporone (1) and eight new triquinane-type sesquiterpenoids have been isolated from mycelial cultures of the agaric Macrocystidia cucumis. The cucumins A−D (2, 4−6) are highly unsaturated hirsutane derivatives, whereas the cucumins E−G (7
Autor:
Wolfgang Steglich, Johannes Dasenbrock, Ryuji Marumoto, Michael Spiteller, Peter Spiteller, Lydia Kahner
Publikováno v:
Phytochemistry. 49(6)
From fruit-bodies of the Japanese mushroom Boletus laetissimus two polyene pigments boletocrocin A and B were isolated and their structures determined by spectroscopic methods. The compounds represent diamides of hexadecaheptaenedioic acid with isole