3 research outputs found
Development of Novel Diastereoselective Alkenylation of Enolates Using Alkenylselenonium Salts
No full textA novel alkenylation of enolates using alkenylselenonium salts is described. A reaction of lithium enolates, which were prepared in situ by
the reaction of LiHMDS and carbonyl compounds, with alkenylselenonium salts gave the ethenylation products of carbonyl compounds in
high yield. Diastereoselective alkenylation was also accomplished by the reaction of the enolates derived from N-acyl-1,3-oxazolidin-2-ones
with the alkenylselenonium salt to afford good results (up to 92% yield and up to 95% de)
Development of Novel Diastereoselective Alkenylation of Enolates Using Alkenylselenonium Salts
No full textA novel alkenylation of enolates using alkenylselenonium salts is described. A reaction of lithium enolates, which were prepared in situ by
the reaction of LiHMDS and carbonyl compounds, with alkenylselenonium salts gave the ethenylation products of carbonyl compounds in
high yield. Diastereoselective alkenylation was also accomplished by the reaction of the enolates derived from N-acyl-1,3-oxazolidin-2-ones
with the alkenylselenonium salt to afford good results (up to 92% yield and up to 95% de)
Polyol Synthesis of Size-Controlled Rh Nanoparticles and Their Application to Photocatalytic Overall Water Splitting under Visible Light
No full textA gradual size control of poly(<i>N</i>-vinyl-2-pyrrolidone)-protected
Rh nanoparticles (PVP-Rh NPs) was successfully achieved in the range
of 1.7–7.7 nm by tuning the pH value and the reaction temperature
of the ethylene glycol (EG) solution; smaller NPs were formed at higher
pH and at higher temperature. This trend can be interpreted by the
change in the nucleation rate caused by tuning the pH value and/or
the temperature of the solution. When the size tuned PVP-Rh NPs were
applied for use as cocatalysts in a photocatalyst (solid solution
of GaN and ZnO (Ga<sub>1–<i>x</i></sub>Zn<sub><i>x</i></sub>)(N<sub>1–<i>x</i></sub>O<sub><i>x</i></sub>)) for overall water splitting under visible light,
it was demonstrated that smaller Rh cores gave higher activity than
the larger ones
