Iron-catalyzed [2 + 2 + 2] cycloaddition of trifluoromethyl group substituted unsymmetrical internal alkynes

RSC Advances ◽  
2014 ◽  
Vol 4 (78) ◽  
pp. 41353-41356 ◽  
Author(s):  
Maki Minakawa ◽  
Tomoki Ishikawa ◽  
Junya Namioka ◽  
Souichirou Hirooka ◽  
Biao Zhou ◽  
...  
Keyword(s):  
High Yield ◽  
Trifluoromethyl Group ◽  
Benzene Derivatives ◽  
Internal Alkynes ◽  
Excellent Selectivity

Iron-catalyzed [2 + 2 + 2] intermolecular cycloaddition of trifluoromethyl group substituted unsymmetrical internal alkynes afforded the corresponding trifluoromethyl group substituted benzene derivatives in high yield with excellent selectivity.

Binuclear molybdenum alkoxide as the versatile catalyst for the conversion of carbon dioxide

2018 ◽  
Vol 20 (5) ◽  
pp. 989-996 ◽  
Author(s):  
Jing-Huo Chen ◽  
Cheng-Hua Deng ◽  
Sheng Fang ◽  
Jian-Gong Ma ◽  
Peng Cheng
Keyword(s):  
Carbon Dioxide ◽  
High Yield ◽  
Mild Conditions ◽  
Excellent Selectivity

CO2 was transformed into different products in mild conditions with high yield and excellent selectivity using a single catalyst.

ChemInform Abstract: Ruthenium-Catalyzed Regio- and Stereoselective Addition of Carboxylic Acids to Aryl and Trifluoromethyl Group Substituted Unsymmetrical Internal Alkynes.

ChemInform ◽  
2011 ◽  
Vol 42 (39) ◽  
pp. no-no
Author(s):  
Motoi Kawatsura ◽  
Junya Namioka ◽  
Koji Kajita ◽  
Mitsuaki Yamamoto ◽  
Hiroaki Tsuji ◽  
...  
Keyword(s):  
Carboxylic Acids ◽  
Trifluoromethyl Group ◽  
Stereoselective Addition ◽  
Internal Alkynes

scholarly journals Investigating the effectiveness of classical and eco-friendly approaches for synthesis of dialdehydes from organic dihalides

2019 ◽  
Vol 8 (1) ◽  
pp. 635-648 ◽  
Author(s):  
Muhammad Faisal ◽  
Mukhtiar Ahmed ◽  
Sarwat Hussain ◽  
Fayaz Ali Larik ◽  
Aamer Saeed
Keyword(s):  
Hydrogen Peroxide ◽  
Organic Synthesis ◽  
Vanadium Pentoxide ◽  
Sodium Periodate ◽  
Periodic Acid ◽  
Research Work ◽  
High Yield ◽  
Synthetic Approach ◽  
Kornblum Oxidation ◽  
Excellent Selectivity

Abstract Monoaldehydes and dialdehydes are parts of millions of compounds and are extremely versatile intermediates. For the synthesis of monoaldehydes, one impressive approach to date, because of its excellent selectivity, high yield and stability towards over-oxidation and over-reduction, is the oxidation of organic monohalides. Numerous monohalides oxidation based methodologies to afford monoaldehydes are disclosed in literature. In this research work, twelve well-known approaches (well-documented for synthesis of monoaldehydes from monohalides) are investigated for their effectiveness towards synthesis of organic dialdehydes from organic dihalides. The classical approaches under investigation include modified Sommelet oxidation, Kröhnke oxidation, sodium periodate-mediated oxidative protocol, manganese dioxide-based oxidative approach, Kornblum oxidation and Hass-Bender oxidation. The eco-friendly approaches under observation include periodic acid-based IL protocol, periodic acid in vanadium pentoxide-mediated IL method, hydrogen peroxide in vanadium pentoxide-based approach, hydrogen peroxide-mediated IL methodology, IBX-assisted IL protocol and bismuth nitrate-promoted IL technique. In this investigation yield, overoxidation, eco-friendliness, cost-effectiveness and recyclability are the main parameters which are under examination. Hopefully, this research will help chemists in carrying out routine operations in organic synthesis and will also be fruitful to select finest synthetic approach, develop further new transformational methodologies and improve current transformational approaches for the synthesis of dialdehydes.

Ruthenium-Catalyzed Regioselective [2 + 2 + 2] Cyclotrimerization of Trifluoromethyl Group Substituted Internal Alkynes

2011 ◽  
Vol 13 (5) ◽  
pp. 1001-1003 ◽  
Author(s):  
Motoi Kawatsura ◽  
Mitsuaki Yamamoto ◽  
Junya Namioka ◽  
Koji Kajita ◽  
Takuya Hirakawa ◽  
...  
Keyword(s):  
Trifluoromethyl Group ◽  
Internal Alkynes

ChemInform Abstract: Iron-Catalyzed [2 + 2 + 2] Cycloaddition of Trifluoromethyl Group Substituted Unsymmetrical Internal Alkynes.

ChemInform ◽  
2015 ◽  
Vol 46 (13) ◽  
pp. no-no
Author(s):  
Maki Minakawa ◽  
Tomoki Ishikawa ◽  
Junya Namioka ◽  
Souichirou Hirooka ◽  
Biao Zhou ◽  
...  
Keyword(s):  
Trifluoromethyl Group ◽  
Internal Alkynes

Sandwich-like reduced graphene oxide/yolk–shell-structured Fe@Fe3O4/carbonized paper as an efficient freestanding electrode for electrochemical synthesis of ammonia directly from H2O and nitrogen

Nanoscale ◽  
2019 ◽  
Vol 11 (27) ◽  
pp. 12997-13006 ◽  
Author(s):  
Chun Li ◽  
Yongsheng Fu ◽  
Zhen Wu ◽  
Jiawei Xia ◽  
Xin Wang
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Electrochemical Synthesis ◽  
High Yield ◽  
Reduced Graphene ◽  
Electrochemical Synthesis Of Ammonia ◽  
Excellent Selectivity

A sandwich-like freestanding electrode exhibits excellent selectivity for N2 reduction (FE: 6.25%), a high yield of NH3 and significant stability.

Ruthenium-Catalyzed Regio- and Stereoselective Addition of Carboxylic Acids to Aryl and Trifluoromethyl Group Substituted Unsymmetrical Internal Alkynes

2011 ◽  
Vol 13 (12) ◽  
pp. 3285-3287 ◽  
Author(s):  
Motoi Kawatsura ◽  
Junya Namioka ◽  
Koji Kajita ◽  
Mitsuaki Yamamoto ◽  
Hiroaki Tsuji ◽  
...  
Keyword(s):  
Carboxylic Acids ◽  
Trifluoromethyl Group ◽  
Stereoselective Addition ◽  
Internal Alkynes
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