Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Pavel Herrmann"'
Publikováno v:
European Journal of Organic Chemistry. 2010:646-655
The synthesis of an estrone intermediate based on a new approach was studied. The construction of the basic framework was carried out in three steps from a simple styrene derivative. The crucial reaction sequence for the steroid skeleton construction
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f44a37a9fe2d85cb4100fcc3bd509e2
https://doi.org/10.1002/ejoc.200900937
https://doi.org/10.1002/ejoc.200900937
Publikováno v:
The Journal of Organic Chemistry. 73:6202-6206
A new and diastereoselective method for the synthesis of the estrone skeleton from a substituted styrene based on sequential 3-fold use of Cp 2ZrBu 2 (oxidative addition-alkylation and two cyclization-alkylation sequences) and a ruthenium complex cat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::12d83026766d982a5965a96f48459767
https://doi.org/10.1021/jo800620d
https://doi.org/10.1021/jo800620d
Publikováno v:
Collection of Czechoslovak Chemical Communications. 73:1825-1834
Steroidal 3-fluoroderivatives were prepared from corresponding tosylates using tetrabutylammonium difluorodimethylphenylsilicate as fluorinating agent. The reaction was tested on all four possible C-3 and C-5 stereoisomers of cholestane and 17-oxoand
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7f1d2e88595e524ecaf47e3059b55e9
https://doi.org/10.1135/cccc20081825
https://doi.org/10.1135/cccc20081825
Autor:
Martin Kotora, Pavel Herrmann
Publikováno v:
Tetrahedron Letters. 48:3209-3212
Zirconocene catalyzed cyclization of 2-(5-methoxy-3-penten-1-yl)styrene in the presence of organomagnesium reagents was studied. The cyclization proceeded in high isolated yields (up to 84%) with excellent trans-selectivity (>98%), which is unusual f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e12b1124245d7ccfe0bf681404732eca
https://doi.org/10.1016/j.tetlet.2007.03.018
https://doi.org/10.1016/j.tetlet.2007.03.018
Publikováno v:
Organic Letters. 12:3690-3692
Diastereotopos-differentiation is the key feature of the catalytic C-H amination at the benzylic position of substrate 1. Essentially independent of the functional group X (X = COOMe, PO(OEt)(2), SO(2)Ph, NO(2), CN, OAc), the depicted products 2 are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fcab1a13a5d1658ef8471bc9fa2f77ea
https://doi.org/10.1021/ol101517v
https://doi.org/10.1021/ol101517v
Autor:
Thorsten Bach, Pavel Herrmann
Publikováno v:
ChemInform. 42
The activation of C–H bonds has become a widely used method which allows for the direct transformation of C–H bonds into synthetically more valuable C–C and C–X bonds in a selective manner. This critical review aims to summarize and to highli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::246db09c0a70d4b611270e3c3f40b480
https://doi.org/10.1002/chin.201135259
https://doi.org/10.1002/chin.201135259
Publikováno v:
ChemInform. 41
In the presence of the Rh catalyst and iodanes, the functionalized arylalkanes (I), (IV), and (VI) undergo amination with good to high diastereoselectivity.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0cda634db39ae02b4401dec53c00e1f4
https://doi.org/10.1002/chin.201051039
https://doi.org/10.1002/chin.201051039
Autor:
Pavel Herrmann, Thorsten Bach
Publikováno v:
Chemical Society reviews. 40(4)
The activation of C–H bonds has become a widely used method which allows for the direct transformation of C–H bonds into synthetically more valuable C–C and C–X bonds in a selective manner. This critical review aims to summarize and to highli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fa613142ef3e56f82719e0dbf0f23dcd
https://pubmed.ncbi.nlm.nih.gov/21079860
https://pubmed.ncbi.nlm.nih.gov/21079860
Publikováno v:
ChemInform. 40
Steroidal 3-fluoroderivatives were prepared from corresponding tosylates using tetrabutylammonium difluorodimethylphenylsilicate as fluorinating agent. The reaction was tested on all four possible C-3 and C-5 stereoisomers of cholestane and 17-oxoand
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f04da40e04023afdcceb41656749137
https://doi.org/10.1002/chin.200921182
https://doi.org/10.1002/chin.200921182
Publikováno v:
ChemInform. 39
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::49346961f17ecdb41443370a1acb974d
https://doi.org/10.1002/chin.200809203
https://doi.org/10.1002/chin.200809203