Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Chunchen Yuan"'
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-10 (2018)
Selective para-functionalization of substituted arenes is a formidable challenge in homogeneous catalysis. Here, the authors achieved the para-selective C-H difluoromethylation of anilides, indolines and tetrahydroquinolines with a ruthenium catalyst
Externí odkaz:
https://doaj.org/article/2e010d01252e4fb4a3b57e589263ff4a
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-8 (2017)
Palladium catalysed C-H functionalization ofsp3carbons typically requires the installation and subsequent removal of a temporary directing group. Here the authors report a method allowing C-H functionalization in carboxylic acids in which the carboxy
Externí odkaz:
https://doaj.org/article/79d36e5bbcad49988d35ee9fadc52393
Publikováno v:
Organic Letters. 21:9852-9855
The development of new methods to achieve the direct synthesis of bioactive organic molecules is always an important topic in organic synthesis. We hereby demonstrate that N-methoxyamide is an exce...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0a042f7b004b9fa85ed048d6d858ea18
https://doi.org/10.1021/acs.orglett.9b03717
https://doi.org/10.1021/acs.orglett.9b03717
Publikováno v:
The Journal of organic chemistry. 85(16)
Highly efficient, palladium-catalyzed, para-selective difluoromethylation of arene esters has been developed using [1,1'-biphenyl]-2-dicyclohexylphosphine as the effective ligand. A wide variety of arene esters bearing various functional groups were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0ce8b93a4f4afae46fe961b2c5d8994c
https://pubmed.ncbi.nlm.nih.gov/32706971
https://pubmed.ncbi.nlm.nih.gov/32706971
Publikováno v:
Nature Communications, Vol 8, Iss 1, Pp 1-8 (2017)
Nature Communications
Nature Communications
α-amino acids bearing aromatic side chains are important synthetic units in the synthesis of peptides and natural products. Although various β-C-H arylation methodologies for amino acid derivatives involving the assistance of directing groups have
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b94158f8a808a2f77e6ded6b76314272
https://doaj.org/article/79d36e5bbcad49988d35ee9fadc52393
https://doaj.org/article/79d36e5bbcad49988d35ee9fadc52393
Publikováno v:
Organic Chemistry Frontiers. 4:1867-1871
A ruthenium-enabled meta-selective C–H difluoromethylation of arenes has been developed. Various arenes bearing pyridyl, pyrazolyl, imidazolyl, or pyrimidyl directing groups, or removable oxazoline directing groups, were tolerated in this meta-sele
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cafc132a86999975c2d75b6e5d039b47
https://doi.org/10.1039/c7qo00449d
https://doi.org/10.1039/c7qo00449d
Publikováno v:
Organic Letters. 19:356-359
The selective arylation of unactivated β or challenging γ primary and secondary β-C(sp3)–H bonds has been developed with a Cp*Rh(III) catalyst assisted by a trimethylpyrazole group. A rarely reported six-membered rhodacycle has been identified i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::097009a3cc811d4151006cfb334f11ac
https://doi.org/10.1021/acs.orglett.6b03522
https://doi.org/10.1021/acs.orglett.6b03522
Publikováno v:
Organic letters. 21(21)
A novel and efficient approach for direct carbonation of aromatic acids with ethyl bromodifluoroacetate as the carbonyl source is reported. A broad range of substrates bearing various functional groups were tolerated, leading to monoalkyl phthalate d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::31bb75c25567ad5dfe6e0ed06434df78
https://pubmed.ncbi.nlm.nih.gov/31621337
https://pubmed.ncbi.nlm.nih.gov/31621337
Publikováno v:
Organic letters. 21(16)
Introducing a perfluoroalkyl group on the aromatic ring with high site selectivity remains a challenging area in organofluorine chemistry. We herein report a highly para-selective C-H perfluoroalkylation of aniline substrates using the molybdenum hex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8888ee346e5e7c11c98a1d00d8451ce5
https://pubmed.ncbi.nlm.nih.gov/31348672
https://pubmed.ncbi.nlm.nih.gov/31348672