Chemists find alkyl groups are electron-withdrawing, challenging a century-old belief
Scientists are calling for changes to chemistry textbooks after discovering a fundamental aspect of structural organic ...
C&EN3 天
Alkyl inductive effects: Confusion in textbooks
But on closer inspection, this interpretation is counter-intuitive. Carbon is slightly more electronegative than hydrogen ...
Middlebury College6 天
Rick Bunt
A series of chiral phosphinooxazoline (PHOX) ligands containing electron donating and withdrawing groups on the aryl backbone have been synthesized. The effects of these electronic perturbations are ...
Scientific Research Publishing22 天
Silica-Grafted Ionic Liquids as Recyclable Catalysts for the Synthesis of 3,4-Dihydropyrano ...
4-dihydropyrano- [c]chromene derivatives were prepared successfully from different aromatic aldehydes bearing electron-withdrawing and electron donating groups, 4-hydroxycoumarin and malononitrile ...
Frontiers28 天
The study of halogen effect on the reactivity of the serine-targeting covalent warheads
1 Organic Chemistry Group, College of Pharmacy, Naval Medical University, Shanghai, China 2 Shanghai Frontiers Science Centre of TCM Chemical Biology, Institute of Interdisciplinary Integrative ...