Mechanochemical palladium-catalyzed C(sp2)–H homocoupling of N-arylcarbamates: synthesis of 2,2′-biaryldiamines

2018 ◽  
Vol 5 (13) ◽  
pp. 2103-2107 ◽  
Author(s):  
Yiyi Weng ◽  
Tianwen Lan ◽  
Chen Sun ◽  
Ting Yang ◽  
Weike Su ◽  
...  
Keyword(s):  
Ball Milling ◽  
High Speed ◽  
Palladium Catalyzed ◽  
Weakly Coordinating ◽  
High Speed Ball Milling

The palladium-catalyzed dehydrogenative C(sp2)–H homocoupling of N-arylcarbamates under high-speed ball-milling conditions has been achieved using weakly coordinating directing groups, providing access to a variety of 2,2′-biaryldicarbamates.

Solvent-free Sonogashira coupling reaction via high speed ball milling

2009 ◽  
Vol 11 (11) ◽  
pp. 1821 ◽  
Author(s):  
Dennis A. Fulmer ◽  
William C. Shearouse ◽  
Shareika T. Medonza ◽  
James Mack
Keyword(s):  
Ball Milling ◽  
High Speed ◽  
Coupling Reaction ◽  
Solvent Free ◽  
Sonogashira Coupling ◽  
Sonogashira Coupling Reaction ◽  
High Speed Ball Milling

ChemInform Abstract: Mechanically Activated Synthesis of 1,3,5-Triaryl-2-pyrazolines by High Speed Ball Milling.

ChemInform ◽  
2009 ◽  
Vol 40 (28) ◽  
Author(s):  
Xingyi Zhu ◽  
Zhenhua Li ◽  
Can Jin ◽  
Li Xu ◽  
Qianqian Wu ◽  
...  
Keyword(s):  
Ball Milling ◽  
High Speed ◽  
High Speed Ball Milling

Novel Mechanochemical Synthesis of Carbon Nanomaterials by a High-Speed Ball-Milling

2011 ◽  
Vol 284-286 ◽  
pp. 755-758 ◽  
Author(s):  
Satoshi Ohara ◽  
Zhenquan Tan ◽  
Hiroya Abe
Keyword(s):  
Ball Milling ◽  
Gas Phase ◽  
Carbon Nanostructures ◽  
High Speed ◽  
Collision Energy ◽  
Carbon Nanomaterials ◽  
Milling Process ◽  
Phase Reaction ◽  
Steel Balls ◽  
High Speed Ball Milling

A novel mechanochemical approach to produce sophisticated carbon nanomaterials is reported. It is demonstrated that carbon nanostructures such as carbon nanotubes and carbon onions are synthesized by high-speed ball-milling of steel balls. It is considered that the gas-phase reaction takes place around the surface of steel balls under local high temperatures induced by the collision energy in ball-milling process, which results in phase separated unique carbon nanomaterials.

ChemInform Abstract: Making Kinetic and Thermodynamic Enolates via Solvent-Free High Speed Ball Milling.

ChemInform ◽  
2010 ◽  
Vol 41 (26) ◽  
pp. no-no
Author(s):  
Daniel C. Waddell ◽  
Indre Thiel ◽  
Tammara D. Clark ◽  
S. Tyler Marcum ◽  
James Mack
Keyword(s):  
Ball Milling ◽  
High Speed ◽  
Solvent Free ◽  
High Speed Ball Milling

Mechanically Activated Solid-State Synthesis of Flavones by High-Speed Ball Milling

2009 ◽  
Vol 39 (23) ◽  
pp. 4199-4211 ◽  
Author(s):  
Xingyi Zhu ◽  
Zhenhua Li ◽  
Qiangfeng Shu ◽  
Chenfeng Zhou ◽  
Weike Su
Keyword(s):  
Solid State ◽  
Ball Milling ◽  
High Speed ◽  
Solid State Synthesis ◽  
High Speed Ball Milling

scholarly journals Cross-Coupling Biarylation of Nitroaryl Chlorides Through High Speed Ball Milling

2015 ◽  
Vol 3 (6) ◽  
pp. 12-35
Author(s):  
Solita Lam ◽  
Yvonne Puplampu Dove ◽  
Adrienne Morris ◽  
Ayunna Epps ◽  
Ghislain R Mandouma
Keyword(s):  
Ball Milling ◽  
High Speed ◽  
Coupling Reaction ◽  
Cross Coupling ◽  
Reaction Cross ◽  
Extraction And Purification ◽  
Custom Made ◽  
Ball Milling Technique ◽  
Solvent Free Reaction ◽  
High Speed Ball Milling

Solvent-free reaction using a high-speed ball milling technique has been applied to the classical Ullmann coupling reaction. Cross-coupling biarylation of several nitroaryl chlorides was achieved in good yields when performed in custom-made copper vials through continuous shaking without additional copper or solvent. Cross-coupling products were obtained almost pure and NMR-ready. These reactions were cleaner than solution phase coupling which require longer reaction time in high boiling solvents, and added catalysts as well as lengthy extraction and purification steps. Gram quantities of cross biaryl compounds have been synthesized with larger copper vials, a proof that this method can be used to reduce industrial waste and for sustainability.

ChemInform Abstract: Solvent-Free Sonogashira Coupling Reaction via High Speed Ball Milling.

ChemInform ◽  
2010 ◽  
Vol 41 (12) ◽  
Author(s):  
Dennis A. Fulmer ◽  
William C. Shearouse ◽  
Shareika T. Medonza ◽  
James Mack
Keyword(s):  
Ball Milling ◽  
High Speed ◽  
Coupling Reaction ◽  
Solvent Free ◽  
Sonogashira Coupling ◽  
Sonogashira Coupling Reaction ◽  
High Speed Ball Milling
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