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pro vyhledávání: '"Diethylaminosulfur trifluoride"'
Akademický článek
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Akademický článek
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Publikováno v:
Organic Letters. 23:9332-9336
A new strategy for the synthesis of fluorinated anilides in the absence of metals and oxidants has been developed. This deoxyfluorination of N-arylhydroxylamines with diethylaminosulfur trifluoride (DAST) proceeded smoothly under mild conditions, and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::84aa276f3bcc3512b2d22957daa4ac56
https://doi.org/10.1021/acs.orglett.1c03779
https://doi.org/10.1021/acs.orglett.1c03779
Publikováno v:
European Journal of Organic Chemistry. 2021:5585-5604
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7092c8fb548e3988b204f56a2f4bd823
https://doi.org/10.1002/ejoc.202101027
https://doi.org/10.1002/ejoc.202101027
Autor:
Haicheng Shen, Bin-Bin Wang, Hongmei Jiang, Qing-Wen Gui, Min Yi, Yujie Yang, Zhibin Nong, Shiyun Tang, Sha Zhu
Publikováno v:
ACS Omega, Vol 6, Iss 40, Pp 26273-26281 (2021)
ACS Omega
ACS Omega
We report a novel, inexpensive double thiolation reagent that sulfurizes a broad range of imidazo[1,2-α]pyridines under mild conditions. Importantly, diethylaminosulfur trifluoride, as a common nucleophilic fluorinating reagent, was utilized as a no
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9949bf8329fb8f35a7bd0cd3f54aebaf
https://doaj.org/article/56f9fa4230f5424893b6497ae2ed71ea
https://doaj.org/article/56f9fa4230f5424893b6497ae2ed71ea
Publikováno v:
Organic & biomolecular chemistry
We herein report the deoxyfluorination of cyclic α-hydroxy-β-ketoesters using diethylaminosulfur trifluoride (DAST). The reaction proceeds with excellent levels of stereospecificity, giving the configurationally inverted α-fluoro-β-ketoesters in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba14dea830e884124b0d19816f427044
http://europepmc.org/articles/PMC7116657
http://europepmc.org/articles/PMC7116657
Autor:
Kler Huonnic, Bruno Linclau
Publikováno v:
CHEMICAL REVIEWS
Fluorinated carbohydrates have found many applications in the glycosciences. Typically, these contain fluorination at a single position. There are not many applications involving polyfluorinated carbohydrates, here defined as monosaccharides in which
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5174b3e01206289db545616838af8a00
https://pubmed.ncbi.nlm.nih.gov/35613331
https://pubmed.ncbi.nlm.nih.gov/35613331
Autor:
Hee Nam Lim, Danhee Kim
Publikováno v:
Organic Letters. 22:7465-7469
A new protocol for preparation of acyl fluorides was developed by recognizing activated ketones as starting materials. The method provides a different scope compared with previously reported methods that employ carboxylic acids as substrates. A worki
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::93c27f5b7520c4e5a584b33d38c10281
https://doi.org/10.1021/acs.orglett.0c02603
https://doi.org/10.1021/acs.orglett.0c02603
Publikováno v:
SynOpen, Vol 03, Iss 02, Pp 55-58 (2019)
For 45 years, efforts to prepare a fluorinated analogue of the scintiscanning/SPECT agent 6-(iodomethyl)-19-norcholest-5(10)-en-3-ol (NP-59) for development of a PET imaging agent have failed due to undesired elimination reactions and unexpected rear
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5dd5f78d4b694f38e2fd7aba731afa0d
http://www.thieme-connect.de/DOI/DOI?10.1055/s-0037-1611845
http://www.thieme-connect.de/DOI/DOI?10.1055/s-0037-1611845
Publikováno v:
Synthesis. 51:2553-2563
A concise route for the synthesis of 3-fluorotetralines is described, including: (i) NaBH4-mediated reduction of oxygenated o-allylchalcones and (ii) sequential DAST-mediated intramolecular annulation of the resulting alkenols. A plausible mechanism
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e096c43f4d092cd354aae7602a32ac2d
https://doi.org/10.1055/s-0037-1612419
https://doi.org/10.1055/s-0037-1612419