Mechanistic Insight into Weak Base-Catalyzed Generation of Carbon Monoxide from Phenyl Formate and Its Application to Catalytic Carbonylation at Room Temperature without Use of External Carbon Monoxide Gas

2017 ◽  
Vol 359 (20) ◽  
pp. 3592-3601 ◽  
Author(s):  
Hideyuki Konishi ◽  
Mika Matsubara ◽  
Keisuke Mori ◽  
Takaki Tokiwa ◽  
Sundaram Arulmozhiraja ◽  
...  
Keyword(s):  
Carbon Monoxide ◽  
Room Temperature ◽  
Weak Base ◽  
Mechanistic Insight ◽  
Insight Into ◽  
Catalytic Carbonylation

scholarly journals Mechanistic Insight into Etching Chemistry and HF-Assisted Etching of MgO-Al2O3-SiO2 Glass-Ceramic

Materials ◽  
2018 ◽  
Vol 11 (9) ◽  
pp. 1631 ◽  
Author(s):  
Yanxin Ji ◽  
Shun Yang ◽  
Zhulian Li ◽  
Junjie Duan ◽  
Meng Xu ◽  
...  
Keyword(s):  
Amorphous Phase ◽  
Glass Ceramic ◽  
Room Temperature ◽  
Etching Rate ◽  
Mesoporous Structure ◽  
High Specific Surface Area ◽  
Sio2 Glass ◽  
Amorphous Phases ◽  
Mechanistic Insight ◽  
Insight Into

The present study focuses on the etching conditions and mechanism of MgO-Al2O3-SiO2 glass-ceramic (MAS) in hydrofluoric acid (HF). The results show that the amorphous phase has 218 times higher etching rate than pure cordierite crystal at room temperature. In addition, the activation energies of cordierite and amorphous phases in the HF solution are 52.5 and 30.6 kJ/mol, respectively. The time (tad) taken for complete dissolution of the amorphous phase depends on the HF concentration (CHF). Based on the etching experiments, a new model is established and refined to assess the tad evolution. In addition, a highly crystalline cordierite phase, with the high specific surface area (59.4 m2·g−1) and mesoporous structure, has been obtained by HF etching. This paper presents novel insights into the etching chemistry and opens up avenues for further research in the area of cordierite-based catalytic ceramics.

scholarly journals Mechanistic insight into B(C6F5)3 catalyzed imine reduction with PhSiH3 under stoichiometric water conditions

RSC Advances ◽  
2021 ◽  
Vol 11 (34) ◽  
pp. 20961-20969
Author(s):  
Yunqing He ◽  
Wanli Nie ◽  
Ying Xue ◽  
Qishan Hu
Keyword(s):  
Mechanistic Insight ◽  
Excess Water ◽  
Water Conditions ◽  
Imine Reduction ◽  
Water Amount ◽  
Insight Into

Hydrosilylation or amination products? It depends on water amount and nucleophiles like excess water or produced/added amines.

scholarly journals Mechanistic insight into the fluorescence activity of forensic fingerprinting reagents

2021 ◽  
Vol 154 (12) ◽  
pp. 124313
Author(s):  
L. M. Hunnisett ◽  
P. F. Kelly ◽  
S. Bleay ◽  
F. Plasser ◽  
R. King ◽  
...  
Keyword(s):  
Mechanistic Insight ◽  
Insight Into
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