Zobrazeno 1 - 10
of 231
pro vyhledávání: '"Tõnis Pehk"'
Autor:
Marek Kõllo, Marje Kasari, Villu Kasari, Tõnis Pehk, Ivar Järving, Margus Lopp, Arvi Jõers, Tõnis Kanger
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 17, Iss 1, Pp 581-588 (2021)
A method for the synthesis of 9,11-secosteroids starting from the natural corticosteroid cortisol is described. There are two key steps in this approach, combining chemistry and synthetic biology. Stereo- and regioselective hydroxylation at C9 (stero
Externí odkaz:
https://doaj.org/article/d1b5d74845ea43ceb9f1ed0c012b3c92
Publikováno v:
Heliyon, Vol 7, Iss 4, Pp e06640- (2021)
In the production of biopolymers, the processing operations (e.g. extraction and drying) involve some degradation of the polysaccharide-causing structural and functional changes in final products. In this study, short-term heat treatment (75–115 °
Externí odkaz:
https://doaj.org/article/e22b042791e646efb3eb1bf14f53eef6
Autor:
Jaan Parve, Marina Kudryashova, Tatsiana Shalima, Ly Villo, Moonika Ferschel, Allan Niidu, Ilme Liblikas, Indrek Reile, Riina Aav, Nicholas Gathergood, Lauri Vares, Tõnis Pehk, Omar Parve
Publikováno v:
European Journal of Organic Chemistry. 26
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bba3833077285b05fa763cd47be2c6e9
https://doi.org/10.1002/ejoc.202201329
https://doi.org/10.1002/ejoc.202201329
Publikováno v:
Tetrahedron. 136:133363
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab888a771673e751127b47f0206d9699
https://doi.org/10.1016/j.tet.2023.133363
https://doi.org/10.1016/j.tet.2023.133363
Autor:
Margus Lopp, Arvi Jõers, Marek Kõllo, Marje Kasari, Tõnis Pehk, Tõnis Kanger, Ivar Järving, Villu Kasari
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 17, Iss 1, Pp 581-588 (2021)
Beilstein Journal of Organic Chemistry
Beilstein Journal of Organic Chemistry
A method for the synthesis of 9,11-secosteroids starting from the natural corticosteroid cortisol is described. There are two key steps in this approach, combining chemistry and synthetic biology. Stereo- and regioselective hydroxylation at C9 (stero
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9ed850e0256d1d9acff861400734f264
https://doi.org/10.3762/bjoc.17.52
https://doi.org/10.3762/bjoc.17.52
Autor:
Rauno Sedrik, Olivier Bonjour, Siim Laanesoo, Ilme Liblikas, Tõnis Pehk, Patric Jannasch, Lauri Vares
Publikováno v:
Biomacromolecules. 23(6)
Incorporating rigid cyclic acetal and ketal units into polymer structures is an important strategy toward recyclable high-performance materials from renewable resources. In the present work, citric acid, a widely used platform chemical derived from b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::032d453cffd13149713599b489ff6420
https://pubmed.ncbi.nlm.nih.gov/35617050
https://pubmed.ncbi.nlm.nih.gov/35617050
Autor:
Ilme Liblikas, Truong Khai-Nghi, Olivier Bonjour, Tõnis Pehk, Kari Rissanen, Lauri Vares, Patric Jannasch
Publikováno v:
Green Chemistry. 22:3940-3951
Introducing biobased polymers from renewable sources for use as high-performance thermoplastics with high demands on mechanical rigidity, transparency, thermal stability, as well as good processability, is a significant challenge. In the present work
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8cfa9888f388ce2cb360272ee96b7328
https://doi.org/10.1039/d0gc00849d
https://doi.org/10.1039/d0gc00849d
Autor:
Maria Fomitšenko, Tõnis Pehk, Mari-Liis Ludvig, Anna Peterson, Jasper Adamson, Merle Uudsemaa, Sandra Kaabel, Aleksander Trummal, Jevgenija Martõnova, Riina Aav, Paul Kerner
Publikováno v:
Supramolecular Chemistry. 32:313-319
We demonstrate that Ullman fragment-coupling can be used to synthesise an oxacalix[4]arene monocarboxylic acid, which provides easy access to its water-soluble carboxylato derivatives. Crystallographic and computational data suggest that the new carb
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e88036c5ba95ddab5cad2cbf74b4e5b7
https://doi.org/10.1080/10610278.2019.1659269
https://doi.org/10.1080/10610278.2019.1659269
Autor:
Ilme Liblikas, Ly Villo, Lauri Vares, Marina Kudryašova, Nicholas Gathergood, Indrek Reile, Tatsiana Shalima, Omar Parve, Tõnis Pehk, Riina Aav, Jaan Parve
Conversion of biobased platform chemicals to enantiopure compounds has become topical. We report a straightforward synthesis of 4-(acyloxy)-pentanoic acids from gamma-valerolactone (GVL). An alkaline hydrolysis of GVL is followed by a stereoselective
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a20042590f02a13df8d971c0917065e0
Autor:
Ilme Liblikas, Livia Matt, Tõnis Pehk, Patric Jannasch, Thanh Huong Pham, Omar Parve, Lauri Vares, Jaan Parve
Publikováno v:
ACS Sustainable Chemistry & Engineering. 6:17382-17390
Isosorbide is a stiff bicyclic diol derived from glycose-based polysaccharides, and is thus an attractive building block for novel rigid bioplastics. In the present work, a highly regioselective biocatalytic approach for the synthesis of isosorbide 5
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5279e2f98292f6e4338081e91b9aac6d
https://doi.org/10.1021/acssuschemeng.8b05074
https://doi.org/10.1021/acssuschemeng.8b05074