Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Marcus Blümel"'
Autor:
Marcus Blümel, Lei Wang, Sun Li, Kari Rissanen, Anssi Peuronen, Dieter Enders, Rakesh Puttreddy
Publikováno v:
Angewandte Chemie. 129:8636-8641
A novel NHC-catalyzed annulation protocol for the asymmetric synthesis of biologically important β-lactam fused spirocyclopentane oxindoles with four contiguous stereocenters, including two quaternary carbon centers, was developed. Alternatively, sp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4d041d4d3e5ac9f3644d060e11b15851
https://doi.org/10.1002/ange.201704210
https://doi.org/10.1002/ange.201704210
Publikováno v:
Chemical Communications. 53:3956-3959
The development of a novel cooperative catalytic system for an amine-silver co-catalyzed Conia-ene reaction of alkyne-tethered C-H-acidic compounds is reported. By using a cost-effective silver salt and a small diamine for the 5-exo-dig-cyclization t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::67f703f21a4dab64773dd384774856b3
https://doi.org/10.1039/c7cc01807j
https://doi.org/10.1039/c7cc01807j
Publikováno v:
Angewandte Chemie International Edition. 56:1466-1484
The first three primary members of the non-benzenoid carbocyclic aromatic ion family, namely cyclopropenium, cyclopentadienide, and cycloheptatrienium (tropylium) ions, have planar cyclic structures with (4n+2)π electrons in fully conjugated systems
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f1351147ee4c5434b675bf031ed327d9
https://doi.org/10.1002/anie.201605979
https://doi.org/10.1002/anie.201605979
Publikováno v:
Angewandte Chemie. 129:1488-1506
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1a368e25b12eb5aeef060c649cc26e4a
https://doi.org/10.1002/ange.201605979
https://doi.org/10.1002/ange.201605979
Autor:
Rakesh Puttreddy, Lei Wang, Marcus Blümel, Ai Wang, Sun Li, Arne R. Philipps, Kari Rissanen, Dieter Enders
Publikováno v:
Angewandte Chemie International Edition. 55:11110-11114
A strategy for the NHC-catalyzed asymmetric synthesis of spirobenzazepinones, spiro-1,2-diazepinones, and spiro-1,2-oxazepinones has been developed via [3+4]-cycloaddition reactions of isatin-derived enals (3C component) with in-situ-generated aza-o-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::63e9d47073161d207e57cfdc04a4125c
https://doi.org/10.1002/anie.201604819
https://doi.org/10.1002/anie.201604819
Publikováno v:
Chemical Communications. 52:7958-7961
N-Heterocyclic olefins (NHOs) have very recently emerged as efficient promoters for several chemical reactions due to their strong Brønsted/Lewis basicities. Here we report the novel application of NHOs as efficient phase-transfer organocatalysts fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::abda65ca0e75a23dcbd7d53816f38185
https://doi.org/10.1039/c6cc03771b
https://doi.org/10.1039/c6cc03771b
Autor:
Katherine Blackford, Stephanie R. Hare, Richmond Sarpong, Dean J. Tantillo, Shota Nagasawa, Marcus Blümel
Publikováno v:
Journal of the American Chemical Society. 140(29)
An acid-catalyzed Prins/semipinacol rearrangement cascade reaction of hydroxylated pinene derivatives that leads to tricyclic fenchone-type scaffolds in very high yields and diastereoselectivity has been developed. Quantum chemical analysis of the se
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b155eaac122144e07adde203f62e14d9
https://pubmed.ncbi.nlm.nih.gov/29968475
https://pubmed.ncbi.nlm.nih.gov/29968475
Publikováno v:
Chemical Society reviews 44(17), 6059-6093 (2015). doi:10.1039/C5CS00097A
Chemical Society reviews 44(17), 6059-6093(2015). doi:10.1039/C5CS00097A
Published by Royal Society of Chemistry, London
Published by Royal Society of Chemistry, London
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b76a5e8b959e36719f346f6417e3a6ae
https://doi.org/10.1039/c5cs00097a
https://doi.org/10.1039/c5cs00097a
Publikováno v:
Synthesis : journal of synthetic organic chemistry 49(07), 1538-1546 (2017). doi:10.1055/s-0036-1588113
Synthesis : journal of synthetic organic chemistry 49(07), 1538-1546 (2017). doi:10.1055/s-0036-1588113
Published by Thieme, Stuttgart [u.a.]
Published by Thieme, Stuttgart [u.a.]
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::28293942f87801a82cfdae26d0fa440d
Publikováno v:
Organic Letters
Organic letters 16(22), 6012-6015 (2014). doi:10.1021/ol503024d
Organic letters 16(22), 6012-6015 (2014). doi:10.1021/ol503024d
A low loading of a quinine-derived squaramide efficiently catalyzes the triple-domino Michael/aza-Henry/cyclization reaction between 1,3-dicarbonyl compounds, β-nitroolefins, and aldimines to provide tetrahydropyridines bearing three contiguous ster
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::02ca96fa094c506d74a623671cb9823f
https://doi.org/10.1021/ol503024d
https://doi.org/10.1021/ol503024d