Molten Salt as a Green Reaction Medium: Efficient and Chemoselective Dithioacetalization and Oxathioacetalization of Aldehydes Mediated by Molten Tetrabutylammonium Bromide

2004 ◽  
Vol 57 (6) ◽  
pp. 605 ◽  
Author(s):  
Brindaban C. Ranu ◽  
Arijit Das
Keyword(s):  
Molten Salt ◽  
Tetrabutylammonium Bromide ◽  
Reaction Medium ◽  
Molten State ◽  
Efficient Catalyst

Tetrabutylammonium bromide in the molten state has been demonstrated to be a very efficient catalyst and reaction medium for the highly chemoselective dithioacetalization and oxathioacetalization of aldehydes. The tetrabutylammonium bromide is recycled for subsequent reactions.

CoCo-PBA/tetrabutylammonium bromide as highly efficient catalyst for CO2 and epoxides coupling reaction under mild conditions

2021 ◽  
Author(s):  
Munir Ullah Khan ◽  
Safir Ullah Khan ◽  
Jiraya Kiriratnikom ◽  
Shah Zareen ◽  
Xinghong Zhang
Keyword(s):  
Tetrabutylammonium Bromide ◽  
Coupling Reaction ◽  
Efficient Catalyst ◽  
Mild Conditions ◽  
Highly Efficient

Development of a novel carboxamide-based off–on switch fluorescence sensor: Hg2+, Zn2+ and Cd2+

2020 ◽  
Vol 44 (27) ◽  
pp. 11841-11852 ◽  
Author(s):  
Mahsa Kiani ◽  
Mojtaba Bagherzadeh ◽  
Soraia Meghdadi ◽  
Navid Rabiee ◽  
Alireza Abbasi ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Tetrabutylammonium Bromide ◽  
Reaction Medium ◽  
Fluorescence Sensor

Here, the carboxamide ligand N-(thiazole-2-yl) picolinamide (L) was synthesized in an ionic liquid tetrabutylammonium bromide (TBAB) as the benign reaction medium.

ChemInform Abstract: Facile Synthesis of Bis(indolyl)methanes Using LaCl3·7H2O as a Mild and Efficient Catalyst in Molten Salt Media.

ChemInform ◽  
2009 ◽  
Vol 40 (42) ◽  
Author(s):  
Neda Seyedi ◽  
Kazem Saidi ◽  
Hojatollah Khabazzadeh
Keyword(s):  
Molten Salt ◽  
Facile Synthesis ◽  
Efficient Catalyst

scholarly journals Low-Temperature Molten Salt Synthesis and the Characterisation of Submicron-Sized Al8B4C7 Powder

Materials ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 70
Author(s):  
Cheng Liu ◽  
Xueyin Liu ◽  
Zhaoping Hou ◽  
Quanli Jia ◽  
Benjun Cheng ◽  
...  
Keyword(s):  
Low Temperature ◽  
Molten Salt ◽  
Raw Materials ◽  
Reaction Medium ◽  
Thermal Reduction ◽  
Molten Salt Synthesis ◽  
Synthesis Process ◽  
Direct Reaction ◽  
Liquid Reaction ◽  
Reduction Methods

Submicron-sized (~200 nm) aluminium boron carbide (Al8B4C7) particles were synthesised from Al, B4C and carbon black raw materials in a molten NaCl-based salt at a relatively low temperature. The effects of the salt type/assembly and the firing temperature on the synthesis process were examined, and the relevant reaction mechanisms discussed. The molten salt played an important role in the Al8B4C7 formation process. By using a combined salt of 95%NaCl + 5%NaF, an effective liquid reaction medium was formed, greatly facilitating the Al8B4C7 formation. As a result, essentially phase-pure Al8B4C7 was obtained after 6 h of firing at 1250 °C. This temperature was 350–550 °C lower than that required by the conventional direct reaction and thermal reduction methods.

g-C3N4 and tetrabutylammonium bromide catalyzed efficient conversion of epoxide to cyclic carbonate under ambient conditions

2017 ◽  
Vol 41 (24) ◽  
pp. 14839-14842 ◽  
Author(s):  
Tanmoy Biswas ◽  
Venkataramanan Mahalingam
Keyword(s):  
Tetrabutylammonium Bromide ◽  
Cyclic Carbonate ◽  
Cyclic Carbonates ◽  
Ambient Conditions ◽  
Efficient Catalyst ◽  
Efficient Conversion

A g-C3N4 and n-Bu4N+Br− combination was found to be an efficient catalyst for the conversion of epoxides to cyclic carbonates under CO2 filled balloon conditions.

Facile Synthesis of Bis(indolyl)methanes Using LaCl3· 7H2O as a Mild and Efficient Catalyst in Molten Salt Media

2009 ◽  
Vol 39 (10) ◽  
pp. 1864-1870 ◽  
Author(s):  
Neda Seyedi ◽  
Kazem Saidi ◽  
Hojatollah Khabazzadeh
Keyword(s):  
Molten Salt ◽  
Facile Synthesis ◽  
Efficient Catalyst

scholarly journals Molten Salt Synthesis of High-Performance, Nanostructured La0.6Sr0.4FeO3−δ Oxygen Electrode of a Reversible Solid Oxide Cell

Materials ◽  
2020 ◽  
Vol 13 (10) ◽  
pp. 2267
Author(s):  
Xiaodong Zuo ◽  
Zhiyi Chen ◽  
Chengzhi Guan ◽  
Kongfa Chen ◽  
Sanzhao Song ◽  
...  
Keyword(s):  
Molten Salt ◽  
High Performance ◽  
Reaction Medium ◽  
Solid Oxide ◽  
Molten Salt Synthesis ◽  
Electrolysis Cell ◽  
Molten Salt Method ◽  
Assembly Method ◽  
Oxygen Electrodes ◽  
Direct Assembly

Nanoscale perovskite oxides with enhanced electrocatalytic activities have been widely used as oxygen electrodes of reversible solid oxide cells (RSOC). Here, La0.6Sr0.4FeO3−δ (LSF) nanoscale powder is synthesized via a novel molten salt method using chlorides as the reaction medium and fired at 850 °C for 5 h after removing the additives. A direct assembly method is employed to fabricate the LSF electrode without a pre-sintering process at high temperature. The microstructure characterization ensures that the direct assembly process will not damage the porosity of LSF. When operating as a solid oxide fuel cell (SOFC), the LSF cell exhibits a peak power density of 1.36, 1.07 and 0.7 W/cm2 at 800, 750 and 700 °C, respectively, while in solid oxide electrolysis cell (SOEC) mode, the electrolysis current density reaches 1.52, 0.98 and 0.53 A/cm2 under an electrolysis voltage of 1.3 V, respectively. Thus, it indicates that the molten salt routine is a promising method for the synthesis of highly active perovskite LSF powders for directly assembled oxygen electrodes of RSOC.

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