Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Zhenya Dai"'
Publikováno v:
Tetrahedron Letters. 59:2671-2678
A serial of novel fluorescent boranil dyes (7, 8, 9, 10) bearing tetraphenylethene were prepared through an efficient process. These dyes exhibited large stokes shifts (more than 5000 cm−1) and moderate fluorescent quantum yield from 0.22–0.53. D
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4da2bf01d47c45d8f569b43466efabc5
https://doi.org/10.1016/j.tetlet.2018.05.081
https://doi.org/10.1016/j.tetlet.2018.05.081
Publikováno v:
New Journal of Chemistry. 42:4045-4051
Herein, a chiral thiourea Schiff base derived from (1R,2R)-1,2-cyclohexanediamine and tetraphenylethylene (TPE) was applied as a highly effective chiral sensor for the enantioselective discrimination of various acids and amines via ion-pair and hydro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::feadd007b96af1d85e6d24f77afb5429
https://doi.org/10.1039/c8nj00374b
https://doi.org/10.1039/c8nj00374b
Publikováno v:
Tetrahedron Letters. 58:3924-3927
New chiral fluorescent sensors derived from tetraphenylethylene and proline hydrazide were synthesized and applied in the chiral recognition of various chiral compounds, including unprotected amino acids, acidic compounds, chiral amines and even neut
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1e355bedfb065945c98cc8964898ec3e
https://doi.org/10.1016/j.tetlet.2017.08.077
https://doi.org/10.1016/j.tetlet.2017.08.077
Publikováno v:
Tetrahedron Letters. 56:1067-1071
Herein a new series of chiral phase transfer catalysts derived from the cinchona alkaloids were synthesized and applied in the asymmetric alkylation of glycine derivatives with high yields and moderate to excellent ee values (39.5–99.7%).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e3677c782ff82d0aebb7542b7c0baa2
https://doi.org/10.1016/j.tetlet.2015.01.063
https://doi.org/10.1016/j.tetlet.2015.01.063
Autor:
Zhenya Dai
Publikováno v:
Austin Journal of Analytical and Pharmaceutical Chemistry. 4
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7459ab1eba6702182743dae6012f8b3
https://doi.org/10.26420/austinjanalpharmchemg.2017.1086
https://doi.org/10.26420/austinjanalpharmchemg.2017.1086
Publikováno v:
Organicbiomolecular chemistry. 15(11)
An unprecedented regioselective metallo-vinylcarbene insertion into O–H bonds has been achieved with vinyldiazoacetates and 2-pyridones/benzyl alcohols as ideal substrates, which displayed distinct regioselectivity by employing gold and silver cata
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::135321cb5ec9bb325ff98fe7d5ae073b
https://pubmed.ncbi.nlm.nih.gov/28244543
https://pubmed.ncbi.nlm.nih.gov/28244543
Autor:
Hans-Joachim Drexler, Wolfgang Baumann, Zhenya Dai, Thomas Schmidt, Angelika Preetz, Detlef Heller, Jiangtao Sun
Publikováno v:
Advanced Synthesis & Catalysis. 351:750-754
During the asymmetric hydrogenation of itaconic acid with rhodium solvate complexes of the type [Rh(PP)(MeOH) 2 ] BF 4 (PP=DIPAMP, Me-DuPHOS) a deactivation with increasing substrate concentration is observed. It is shown that this inhibition phenome
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9f4b8269ebb0c24f33f461371792b673
https://doi.org/10.1002/adsc.200800756
https://doi.org/10.1002/adsc.200800756
Publikováno v:
Tetrahedron: Asymmetry. 19:2451-2457
We have designed and synthesized a new library of highly modular Schiff base-camphorsulfonyl amide ligands from readily available starting materials. These ligands have been used in the asymmetric addition of diethyl zinc to aldehydes in good yields
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a83be2e6839b256a9c46d84d7b15eed3
https://doi.org/10.1016/j.tetasy.2008.10.017
https://doi.org/10.1016/j.tetasy.2008.10.017
Publikováno v:
Synthesis. 2008:2513-2518
A simple and efficient approach to obtain optically pure 1,4-diols was established. The asymmetric oxidation of sulfides to sulfoxides with cumyl hydroperoxide in moderate yields and moderate to high enantioselectivities (up to 84%) catalyzed by chir
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bc2b3295a3da285696b857f078d38c20
https://doi.org/10.1055/s-2008-1067185
https://doi.org/10.1055/s-2008-1067185
Publikováno v:
Synthesis. 2008:2100-2104
The first example of enantioselective ring-opening of meso-epoxides catalyzed by chiral oxovanadium(V)-salan complexes is reported. The reaction furnished 1,2-aminoalcohols in good yields and moderate to high enantioselectivities (up to 87%).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::29bac547203448e05df11401ab3cce78
https://doi.org/10.1055/s-2008-1067109
https://doi.org/10.1055/s-2008-1067109