Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Karin Weidner"'
Publikováno v:
Radiation Oncology, Vol 18, Iss 1, Pp 1-13 (2023)
Abstract Background Single-fraction stereotactic radiosurgery (SRS) is an established standard for radiation therapy of brain metastases although recent developments indicate that multi-fractionated stereotactic radiotherapy (FSRT) results in lower r
Externí odkaz:
https://doaj.org/article/6aa7aea792f845538357b752cdf2a049
Publikováno v:
Radiation Oncology, Vol 18, Iss 1, Pp 1-11 (2023)
Abstract Background Lasting local control of brain metastases following stereotactic radiotherapy is becoming increasingly relevant since systemic treatment constantly improves the prognosis of patients with extracranial metastases. Methods 73 patien
Externí odkaz:
https://doaj.org/article/847e6969132745f3808fb78a5df1a543
Publikováno v:
Clinical Case Reports, Vol 10, Iss 7, Pp n/a-n/a (2022)
Abstract Definitive radiotherapy is a curative and noninvasive treatment modality for cutaneous squamous cell carcinomas of the midface when surgery has an impact on function and cosmetics. Volumetric modulated arc therapy provides optimal dose cover
Externí odkaz:
https://doaj.org/article/f0a93ac2abbe438db29e44cf0249508e
Publikováno v:
Chemical Science. 8:3260-3269
Organofluorine compounds are found in several important classes of chemicals, such as pharmaceuticals, agrochemicals, and functional materials. Chemists have been immensely interested in the development of methodologies for expeditious access to fluo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8843dc15622db5dc79c5a210c6cd5da
https://doi.org/10.1039/c7sc00330g
https://doi.org/10.1039/c7sc00330g
Publikováno v:
Chemistry - A European Journal. 21:17574-17577
An α-N3 7-azaindoline amide serves as a latent enolate to directly engage in an asymmetric Mannich-type reaction with N-thiophosphinoyl imines by the action of a cooperative catalyst. The thus-obtained highly enantioenriched anti-adduct was transfor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1646a4be55017317b7cc7f38807b277c
https://doi.org/10.1002/chem.201503921
https://doi.org/10.1002/chem.201503921
Publikováno v:
Angewandte Chemie International Edition. 54:6236-6240
A direct aldol reaction of an α-azido 7-azaindolinylamide, promoted by a Cu-based cooperative catalyst, is documented. Aromatic aldehydes bearing an ortho substituent exhibited diastereodivergency depending on the nature of the chiral ligands used.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c6dcfe29515f9d1ab3a3bfda13260645
https://doi.org/10.1002/anie.201501607
https://doi.org/10.1002/anie.201501607
Publikováno v:
Lapointe, Guillaume; Kapat, Ajoy; Weidner, Karin; Renaud, Philippe (2012). Radical azidation reactions and their application in the synthesis of alkaloids. Pure and applied chemistry, 84(7), pp. 1633-1641. Research Triangle Park, NC: De Gruyter 10.1351/PAC-CON-11-11-21
Recent advances in radical azidation using sulfonyl azides are presented. For instance, radical carboazidation using α-iodoketones, desulfitative carboazidation, and anti-Markovnikov hydroazidation of alkenes are described. These novel methods toler
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3c7be428ea50c07239fbeb0d38e87053
http://doc.rero.ch/record/292270/files/pac-con-11-11-21.pdf
http://doc.rero.ch/record/292270/files/pac-con-11-11-21.pdf
Publikováno v:
Angewandte Chemie International Edition. 53:6150-6154
The direct catalytic asymmetric aldol reaction offers efficient access to β-hydroxy carbonyl entities. Described is a robust direct catalytic asymmetric aldol reaction of α-sulfanyl 7-azaindolinylamide, thus affording both aromatic and aliphatic β
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a108abeed69bfddaca73ff35f671cf83
https://doi.org/10.1002/anie.201403118
https://doi.org/10.1002/anie.201403118
Autor:
Philippe Renaud, Karin Weidner
Publikováno v:
AUSTRALIAN JOURNAL OF CHEMISTRY
Rate constants for the reaction between a secondary alkyl radical and two different sulfonyl azides were determined using bimolecular competing radical reactions. The rates of azidation were determined by competition with hydrogen atom transfer from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e696bc9964700f65c5e5b16d99c3e137
Publikováno v:
ChemInform. 47
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::471292b58586d46580b4dc9105c25c89
https://doi.org/10.1002/chin.201617205
https://doi.org/10.1002/chin.201617205