Journal
BEILSTEIN JOURNAL OF ORGANIC CHEMISTRY
Volume 14, Issue -, Pages 688-696Publisher
BEILSTEIN-INSTITUT
DOI: 10.3762/bjoc.14.57
Keywords
green chemistry; high-speed ball milling; HSBM; LAG; liquid-assisted grinding; Wittig
Categories
Funding
- National Science Foundation [CHE-1465110]
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Mechanochemistry is maturing as a discipline and continuing to grow, so it is important to continue understanding the rules governing the system. In a mechanochemical reaction, the reactants are added into a vessel along with one or more grinding balls and the vessel is shaken at high speeds to facilitate a chemical reaction. The dielectric constant of the solvent used in liquid-assisted grinding (LAG) and properly chosen counter-ion pairing increases the percentage conversion of stilbenes in a mechanochemical Wittig reaction. Utilizing stepwise addition/evaporation of ethanol in liquid-assisted grinding also allows for the tuning of the diastereoselectivity in the Wittig reaction.
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