Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Michael Wilking"'
Publikováno v:
European Journal of Organic Chemistry. 2018:3158-3166
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::570aefaa20c164497836c530d4dbf3ad
https://doi.org/10.1002/ejoc.201800642
https://doi.org/10.1002/ejoc.201800642
Publikováno v:
Chemistry - A European Journal. 22:18601-18607
The cinchona alkaloid dimer (DHQD)2 PHAL has been shown to be a broadly applicable catalyst for asymmetric halogenations. However, this catalyst does not have to be dimeric and a class of monomeric quinidine and quinine-derived catalysts was prepared
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2b3b5d1f60301d7a6188b460b656718f
https://doi.org/10.1002/chem.201604003
https://doi.org/10.1002/chem.201604003
Autor:
Ulrich Hennecke, Michael Wilking
Publikováno v:
Synlett. 25:1633-1637
Halocyclization reactions such as halolactonization are powerful synthetic methods for the functionalization of alkenes and alkynes. However, asymmetric versions were thought of as difficult reactions and only recently have new asymmetric, organocata
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e56feea40663fa68f7621d33156ad97
https://doi.org/10.1055/s-0033-1341160
https://doi.org/10.1055/s-0033-1341160
Autor:
Ulrich Hennecke, Michael Wilking
Publikováno v:
ChemInform. 45
Halocyclization reactions such as halolactonization are powerful synthetic methods for the functionalization of alkenes and alkynes. However, asymmetric versions were thought of as difficult reactions and only recently have new asymmetric, organocata
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::279bdadb27224a63d8b870a76cf26eb9
https://doi.org/10.1002/chin.201443247
https://doi.org/10.1002/chin.201443247
Asymmetric, reagent-controlled bromolactonizations of allenoic acids have been achieved by using (DHQD)2PHAL as catalyst. A range of substrates can be cyclized in good yields and moderate to good enantioselectivities under operationally simple condit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0643bf5c29d361196914f1e83127bd78
https://doi.org/10.1055/s-0034-1378278
https://doi.org/10.1055/s-0034-1378278
Autor:
Michael Wilking
Publikováno v:
Proceedings of The European Physical Society Conference on High Energy Physics — PoS(EPS-HEP 2013).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48001962d576a783cb6632392470d982
https://doi.org/10.22323/1.180.0536
https://doi.org/10.22323/1.180.0536
Publikováno v:
ChemInform. 44
A variety of bromoenol lactones containing a tetrasubstituted alkene and an all-carbon quaternary stereocenter is prepared with high yields and enantioselectivities.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::df4889f100668339786a8e5aebe7e085
https://doi.org/10.1002/chin.201346091
https://doi.org/10.1002/chin.201346091
Asymmetric bromolactonizations of alkynes are possible using a desymmetrization approach. The commercially available catalyst (DHQD)2PHAL promotes these cyclizations in combination with cheap NBS as a bromine source to give bromoenol lactones in high
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::650e7679db79c39a23d691cd77c48902
https://hdl.handle.net/20.500.14017/b35e48c1-631b-42dd-a7d4-f1c408410ef2
https://hdl.handle.net/20.500.14017/b35e48c1-631b-42dd-a7d4-f1c408410ef2
Publikováno v:
ChemInform. 43
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c113de8ab65ddf9a07dc8c687f5e4883
https://doi.org/10.1002/chin.201202089
https://doi.org/10.1002/chin.201202089