Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Yinjun Hu"'
Publikováno v:
ACS Combinatorial Science. 14:304-308
A modular synthesis of P-chirogenic α-alkoxyphosphine ligands has been developed, allowing for the variation of two of the three groups on phosphorus. Oxidation and concomitant desymmetrization of a prochiral alkyl- or aryldimethylphosphine borane a
Publikováno v:
Tetrahedron: Asymmetry. 21:903-908
Chiral cyclohexane-based phosphinothioureas were found to be efficient organocatalysts for the enantioselective intramolecular Morita–Baylis–Hillman reaction of ω-formyl-enone. Among the solvents screened, t-BuOH was the best one which provided
Publikováno v:
Tetrahedron. 65:8185-8190
A series of chiral bifunctional phosphinothioureas were synthesized and applied to the enantioselective Morita–Baylis–Hillman reaction of aromatic aldehydes with acrylates. In the presence of 8 mol % of organocatalyst 2e, the Baylis–Hillman add
Publikováno v:
Frontiers in Surgery, Vol 9 (2023)
PurposeTo evaluate the long-term curative effect analysis of trans-articular plate combined with Kirschner wires in the treatment of fracture-dislocation of the fifth carpometacarpal joint.MethodsFrom July 2016 to September 2021, 21 patients with fra
Externí odkaz:
https://doaj.org/article/8b7b5caf50504b4da35a5225a2ee327a
Publikováno v:
Tetrahedron Letters. 49:6262-6264
A new class of chiral phosphinothioureas has been developed as efficient organocatalyst for the enantioselective Morita–Baylis–Hillman reaction of aromatic aldehydes with methyl vinyl ketone. The reaction proceeds under very mild conditions to af
Publikováno v:
ChemInform. 44
The reaction can also be performed in the presence of fluorinated terephthalic acid as catalyst albeit products are obtained in somewhat lower yields.
Publikováno v:
The Journal of organic chemistry. 78(11)
We have developed an efficient Bronsted acid-controlled strategy for the [3 + 2] coupling reaction of quinone monoacetals (QMAs) with nucleophilic alkenes, which is triggered by the particular use of a specific acid promoter, perfluorinated acid, and
Publikováno v:
ChemInform. 44
One by one: starting from simple phenols, a diverse series of oxygenated terphenyl compounds can be prepared in a concise and practical manner using sequential arylation reactions involving phenol oxidation/rearomatization and quinone monoacetal inte
Publikováno v:
ChemInform. 44
A unique solid acid catalyst PBA is developed and efficiently employed for the coupling of quinone monoacetals with olefins and other nucleophiles.
Publikováno v:
Journal of Orthopaedic Surgery and Research, Vol 16, Iss 1, Pp 1-7 (2021)
Abstract Purpose To evaluate the efficacy of a modified internal fixation method for the treatment of fifth metacarpal neck fracture. Methods From March 2018 to December 2019, 12 patients with the fifth metacarpal neck fractures of the hands were tre
Externí odkaz:
https://doaj.org/article/f93c799c40604be093cc6ff891b889c0