scholarly journals Mechanochemical N-alkylation of imides

2017 ◽  
Vol 13 ◽  
pp. 1745-1752 ◽  
Author(s):  
Anamarija Briš ◽  
Mateja Đud ◽  
Davor Margetić
Keyword(s):  
Classical Solution ◽  
Ball Milling ◽  
Ball Mill ◽  
Alkyl Halides ◽  
Solvent Free ◽  
Solvent Free Conditions

The mechanochemical N-alkylation of imide derivatives was studied. Reactions under solvent-free conditions in a ball mill gave good yields and could be put in place of the classical solution conditions. The method is general and can be applied to various imides and alkyl halides. Phthalimides prepared under ball milling conditions were used in a mechanochemical Gabriel synthesis of amines by their reaction with 1,2-diaminoethane.

scholarly journals Mesoporous PbO nanoparticle-catalyzed synthesis of arylbenzodioxy xanthenedione scaffolds under solvent-free conditions in a ball mill

RSC Advances ◽  
2019 ◽  
Vol 9 (54) ◽  
pp. 31683-31690 ◽  
Author(s):  
Trimurti L. Lambat ◽  
Ratiram G. Chaudhary ◽  
Ahmed A. Abdala ◽  
Raghvendra Kumar Mishra ◽  
Sami H. Mahmood ◽  
...  
Keyword(s):  
Ball Milling ◽  
Ball Mill ◽  
Solvent Free ◽  
Reusable Catalyst ◽  
One Pot ◽  
Solvent Free Conditions ◽  
Pbo Nanoparticles

An efficient one-pot multicomponent protocol was developed for the synthesis of arylbenzodioxy xanthenedione scaffolds using mesoporous PbO nanoparticles as reusable catalyst under solvent-free ball milling conditions.

Fast, solvent-free and highly enantioselective fluorination of β-keto esters catalyzed by chiral copper complexes in a ball mill

2017 ◽  
Vol 19 (7) ◽  
pp. 1674-1677 ◽  
Author(s):  
Yifeng Wang ◽  
Haojiang Wang ◽  
Yidong Jiang ◽  
Cheng Zhang ◽  
Juanjuan Shao ◽  
...  
Keyword(s):  
Ball Mill ◽  
Copper Complexes ◽  
Solvent Free ◽  
Planetary Ball Mill ◽  
Keto Esters ◽  
Solvent Free Conditions

A fast and highly enantioselective fluorination of β-keto esters catalyzed by diphenylamine linked bis(oxazoline)-Cu(OTf)2 complexes under solvent-free conditions has been developed using a planetary ball mill.

Synthesis of Phosphine Chalcogenides Under Solvent-Free Conditions Using a Rotary Ball Mill

2018 ◽  
Vol 2018 (8) ◽  
pp. 1028-1037 ◽  
Author(s):  
Rajnish Kumar ◽  
Saurabh Kumar ◽  
Madhusudan K. Pandey ◽  
Vitthalrao S. Kashid ◽  
Latchupatula Radhakrishna ◽  
...  
Keyword(s):  
Ball Mill ◽  
Solvent Free ◽  
Solvent Free Conditions ◽  
Phosphine Chalcogenides

scholarly journals Efficient mechanochemical synthesis of regioselective persubstituted cyclodextrins

2016 ◽  
Vol 12 ◽  
pp. 2364-2371 ◽  
Author(s):  
Laszlo Jicsinszky ◽  
Marina Caporaso ◽  
Katia Martina ◽  
Emanuela Calcio Gaudino ◽  
Giancarlo Cravotto
Keyword(s):  
Mechanochemical Synthesis ◽  
Ball Mill ◽  
Solvent Free ◽  
Planetary Ball Mill ◽  
Aprotic Solvents ◽  
Isolation And Purification ◽  
Cyclodextrin Derivative ◽  
Complete Reaction ◽  
Solvent Free Conditions

A number of per-6-substituted cyclodextrin derivative syntheses have been effectively carried out in a planetary ball mill under solvent-free conditions. The preparation of Bridion® and important per-6-amino/thiocyclodextrin intermediates without polar aprotic solvents, a source of byproducts and persistent impurities, could be performed. Isolation and purification processes could also be simplified. Considerably lower alkylthiol/halide ratio were necessary to reach the complete reaction in comparison with thiourea or azide reactions. While the presented mechanochemical syntheses were carried out on the millimolar scale, they are easily scalable.

Ball-milling synthesized hydrotalcite supported Cu–Mn mixed oxide under solvent-free conditions: an active catalyst for aerobic oxidative synthesis of 2-acylbenzothiazoles and quinoxalines

2018 ◽  
Vol 20 (20) ◽  
pp. 4638-4644 ◽  
Author(s):  
Xu Meng ◽  
Xiuru Bi ◽  
Chaoying Yu ◽  
Gexin Chen ◽  
Baohua Chen ◽  
...  
Keyword(s):  
Ball Milling ◽  
Mixed Oxide ◽  
Active Catalyst ◽  
Supported Catalyst ◽  
Catalytic Performance ◽  
Solvent Free ◽  
Solvent Free Conditions ◽  
Excellent Catalytic Performance

Ball-milling results in excellent catalytic performance of bimetallic supported catalyst Cu–Mn/HT.

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