Zobrazeno 1 - 10
of 81
pro vyhledávání: '"Pixu Li"'
Autor:
Schäfer, Gabriel, Fleischer, Tony, Blumer, Nicole, Udry, Megan, Reber, Stefan, Stansfield, Ian, Yuanhua Liu, Yan Li, Pixu Li
Publikováno v:
Organic Process Research & Development; 2/18/2022, Vol. 26 Issue 2, p347-357, 11p
Publikováno v:
Tetrahedron Letters. 57:2273-2276
A visible-light-promoted functionalization of unactivated benzylic sp3 C–H bonds was developed. Ethylbenzene derivatives were converted to the corresponding benzyl bromides or afforded benzylamine derivatives in a one-pot manner under visible light
Autor:
Pixu Li, Weigang Fan
Publikováno v:
Angewandte Chemie International Edition. 53:12201-12204
Secondary enaminones were oxidized by photochemically generated singlet oxygen, followed by nucleophilic addition of alcohol and an unexpected 1,2-acyl migration to afford quaternary amino acid derivatives. An ene-type reaction pathway is proposed. I
Publikováno v:
ACS Catalysis. 4:1897-1900
An aerobic visible-light-promoted indole C-3 formylation reaction catalyzed by Rose Bengal has been developed. This transition-metal-free process employs molecular oxygen as the terminal oxidant and uses TMEDA as the one-carbon source through C–N b
Publikováno v:
Chinese Journal of Chemistry. 32:117-122
A homogeneous visible light photoredox TEMPO-mediated selective oxidation of primary alcohols to the corresponding carbonyl compounds was developed using molecular oxygen from air as the terminal oxidant. Ru(bpy)3(PF6)2 (bpy: bipyridyl) and Ir(dtb-bp
Publikováno v:
Organic Letters. 15:5646-5649
A visible-light photoredox synthesis of α-amino amide or α-amino thioamide from N,N-dimethylaniline derivatives and aryl isocyanate or aryl isothiocyanate was developed. Bis[2-(4,6-difluorophenyl)pyridinato-C(2),N](picolinato)iridium(III) (FIrpic)
Publikováno v:
Chemistry - A European Journal. 19:11878-11882
Radical chemistry! A visible-light-promoted, tin/boron-free intermolecular [3+2] atom-transfer radical cyclization reaction was developed by using iridium polyphenylpridinyl complex as the sensitizer. 2-(Iodomethyl)cyclopropane-1,1-dicarboxylate reac
Publikováno v:
Organic Letters. 15:2664-2667
Direct arylation of unactivated arenes or heteroarenes with aryl halides could be carried out in the presence of potassium tert-butoxide and dimethyl sulfoxide under visible-light irradiation. Ir(ppy)3 was found to be an effective photoredox catalyst
Publikováno v:
ChemInform. 47
A visible-light-promoted functionalization of unactivated benzylic sp3 C—H bonds is developed.
Publikováno v:
Chinese Journal of Chemistry. 19:45-51
Aldehydes reacted with zirconacyclopentane derivatives via insertion into the Zr-sp3C bond to afford the corresponding 7-membered zirconacycles.