Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Alexander J. Oelke"'
Publikováno v:
Angewandte Chemie. 122:6275-6278
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::523432bbed159e43a45278a8c7891229
https://doi.org/10.1002/ange.201002880
https://doi.org/10.1002/ange.201002880
Publikováno v:
ChemInform. 43
A variety of silyl-substituted propargylic carbonates are coupled with arylzinc iodides in the presence of a nickel/chiral bis(oxazolinyl)pyridine catalyst to give the arylated alkynes with up to 93% enantioselectivity.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e4426c30291eb711ba93a090bc4181f4
https://doi.org/10.1002/chin.201229023
https://doi.org/10.1002/chin.201229023
To date, effective nickel-catalyzed enantioselective cross-couplings of alkyl electrophiles that bear oxygen leaving groups have been limited to reactions of allylic alcohol derivatives with Grignard reagents. In this Communication, we establish that
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4918d2b356df36d543fb248a69274a77
https://resolver.caltech.edu/CaltechAUTHORS:20200428-095145561
https://resolver.caltech.edu/CaltechAUTHORS:20200428-095145561
Publikováno v:
ChemInform. 42
Since their first discovery in 1959, natural products containing the piperazic acid motif have been isolated from a variety of sources and exhibit diverse biological activity profiles. This review provides information about their isolation and biolog
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f37385fe3a2040852ba38feb6b54f5a4
https://doi.org/10.1002/chin.201146267
https://doi.org/10.1002/chin.201146267
Publikováno v:
Natural product reports. 28(8)
Since their first discovery in 1959, natural products containing the piperazic acid motif have been isolated from a variety of sources and exhibit diverse biological activity profiles. This review provides information about their isolation and biolog
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d087feaa213f34d8efd2c853daa1c2bd
https://pubmed.ncbi.nlm.nih.gov/21731941
https://pubmed.ncbi.nlm.nih.gov/21731941
Autor:
Alexander J. Oelke, Francesca Antonietti, Leonardo Bertone, Philippa B. Cranwell, David J. France, Rebecca J. M. Goss, Tatjana Hofmann, Stephan Knauer, Steven J. Moss, Paul C. Skelton, Richard M. Turner, Georg Wuitschik, Steven V. Ley
Publikováno v:
Chemistry (Weinheim an der Bergstrasse, Germany). 17(15)
Here we describe in full our investigations into the synthesis of the dimeric cyclohexapeptide chloptosin in 17 linear steps. Particularly, this work features an organocatalytic tandem process for the synthesis of the embedded piperazic acids, in whi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f26c703fc1ff030b98deb4ebb8b446a
https://pubmed.ncbi.nlm.nih.gov/21412862
https://pubmed.ncbi.nlm.nih.gov/21412862
Autor:
Veit Wascholowski, Vilius Franckevicius, Sirirat Kumarn, Deborah A. Longbottom, Steven V. Ley, Alexander J. Oelke
Publikováno v:
ChemInform. 40
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::25ff600e257b8a97dbe9c52b84edb9a0
https://doi.org/10.1002/chin.200929245
https://doi.org/10.1002/chin.200929245
Publikováno v:
ChemInform. 38
A sequential, organocatalysed asymmetric reaction to access chiral 1,2-oxazines and chiral pyridazines is reported, which proceeds in moderate to good yields and good to excellent enantioselectivities.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9002ca095f832e6f10a2d84f6514a8e1
https://doi.org/10.1002/chin.200751030
https://doi.org/10.1002/chin.200751030
Publikováno v:
ChemInform. 38
Here we describe a highly enantioselective organocatalytic synthesis of chiral 3,6-dihydropyridazines from achiral starting materials which proceeds with good yield via a one-pot procedure.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6596d48cb636ab1f60d1d3a28ae9293a
https://doi.org/10.1002/chin.200707129
https://doi.org/10.1002/chin.200707129