ortho ‐Allylation of 1‐Arylpyrazoles with Allyl Phenyl Ether via Iron‐Catalyzed CH Bond Activation under Mild Conditions

2014 ◽  
Vol 356 (7) ◽  
pp. 1481-1485 ◽  
Author(s):  
Sobi Asako ◽  
Jakob Norinder ◽  
Laurean Ilies ◽  
Naohiko Yoshikai ◽  
Eiichi Nakamura
Keyword(s):  
Bond Activation ◽  
Phenyl Ether ◽  
Mild Conditions ◽  
Allyl Phenyl Ether

ChemInform Abstract: ortho-Allylation of 1-Arylpyrazoles with Allyl Phenyl Ether via Iron-Catalyzed C-H Bond Activation under Mild Conditions.

ChemInform ◽  
2014 ◽  
Vol 45 (42) ◽  
pp. no-no
Author(s):  
Sobi Asako ◽  
Jakob Norinder ◽  
Laurean Ilies ◽  
Naohiko Yoshikai ◽  
Eiichi Nakamura
Keyword(s):  
Bond Activation ◽  
Phenyl Ether ◽  
Mild Conditions ◽  
Allyl Phenyl Ether

Pt-Pd Nanoalloy for the Unprecedented Activation of Carbon-Fluorine Bond at Low Temperature

2019 ◽  
Author(s):  
Raghu Nath Dhital ◽  
keigo nomura ◽  
Yoshinori Sato ◽  
Setsiri Haesuwannakij ◽  
Masahiro Ehara ◽  
...  
Keyword(s):  
Activation Energy ◽  
Low Temperature ◽  
Dft Calculations ◽  
Bond Activation ◽  
Mild Conditions ◽  
Selective Transformation ◽  
Rate Determining Step ◽  
Highly Active ◽  
Harsh Conditions ◽  
Reaction Profile

Carbon-Fluorine (C-F) bonds are considered the most inert organic functionality and their selective transformation under mild conditions remains challenging. Herein, we report a highly active Pt-Pd nanoalloy as a robust catalyst for the transformation of C-F bonds into C-H bonds at low temperature, a reaction that often required harsh conditions. The alloying of Pt with Pd is crucial to activate C-F bond. The reaction profile kinetics revealed that the major source of hydrogen in the defluorinated product is the alcoholic proton of 2-propanol, and the rate-determining step is the reduction of the metal upon transfer of the <i>beta</i>-H from 2-propanol. DFT calculations elucidated that the key step is the selective oxidative addition of the O-H bond of 2-propanol to a Pd center prior to C-F bond activation at a Pt site, which crucially reduces the activation energy of the C-F bond. Therefore, both Pt and Pd work independently but synergistically to promote the overall reaction

scholarly journals Pd/Ni-Catalyzed Germa-Suzuki coupling via dual Ge–F bond activation

2021 ◽  
Author(s):  
Hajime Kameo ◽  
Akihiro Mushiake ◽  
Tomohito Isasa ◽  
Hiroyuki Matsuzaka ◽  
Didier Bourissou
Keyword(s):  
Bond Activation ◽  
Suzuki Coupling ◽  
Mild Conditions ◽  
Dual Activation

Pd/Ni → Ge–F interactions supported by phosphine-chelation were found to trigger dual activation of Ge–F bonds under mild conditions.

scholarly journals Direct Sulfoxidation of Aromatic Methyl Thioethers with Aryl Halides by Copper-Catalyzed C(sp3)–H Bond Activation

Catalysts ◽  
2019 ◽  
Vol 9 (1) ◽  
pp. 105
Author(s):  
Runsheng Xu ◽  
Yueer Zhu ◽  
Feixiang Xiong ◽  
Suli Tong
Keyword(s):  
Bond Activation ◽  
Bond Formation ◽  
Aryl Halides ◽  
Biologically Active ◽  
Mild Conditions ◽  
Methyl Thioethers ◽  
High Yields

A copper-catalyzed direct sulfoxidation reaction by C(sp3)–H bond activation has been developed. Starting from sample aromatic methyl thioethers with aryl halides, versatile biologically-active arylbenzylsulfoxide derivatives were efficiently synthesized in good to high yields under mild conditions. This new methodology provides an economical approach toward C(sp3)–C(sp2) bond formation.

scholarly journals Reaction of Allyl Phenyl Ether over Various Liquid Metal Catalysts

1987 ◽  
Vol 60 (12) ◽  
pp. 4279-4284 ◽  
Author(s):  
Sentaro Ozawa ◽  
Yoshiki Sasaki ◽  
Yoshisada Ogino
Keyword(s):  
Liquid Metal ◽  
Metal Catalysts ◽  
Phenyl Ether ◽  
Allyl Phenyl Ether
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