As described before, acrylonitrile and acrylate are oxidized to acetals of aldehydes in alcohols or ethylene glycol.18–20 Selective oxidation of terminal carbons in 4-hydroxy-1-alkenes (18) gave the five-membe
By means of the method, in the glycol acetal/ketone reaction, a high conversion rate can be obtained, the procedure is simple, the reactive distillation method is applied to preparation of ethylene glycol through coal or with a biomass catalysis method or an acetal/ketone reaction of glycol in...
Interactive 3D chemistry animations of reaction mechanisms and 3D models of chemical structures for students studying University courses and advanced school chemistry hosted by University of Liverpool
Click the structures and reaction arrows in sequence to view the 3D models and animations respectively The Felkin-Anh conformation has the largest (and most electronegative in other cases) group perpendicular to the carbonyl. Attack on the Bürgi-Dunitz trajectory leads to the nucleophile, hydride in...
Some additional natural products that can be derivatized include, but are not limited to, acetaldehyde, glyceraldehyde, dihydroxyacetone, and pyruvates. An extremely wide variety of carboxylic acids are derivatized by the reagents of the invention, in conjunction with carboxylate-activating reagents. ...
A novel ketone derivative (I) which possesses a potent inhibitory activity against thiol protease such as papain, cathepsin B, cathepsin H, cathepsin L, calpain or the like with excellent properties r
Ethylene glycolMethyl 2-napthyl ketoneCatalytic conversion of biomass to value added products is relevant with regard to several industries. Biomass derived ethylene glycol has many applications. Acetalization is used to synthesize valuable chemicals and also occasionally to protect carbonyl groups of ...
Bis(4, 5-dimethoxy-2-nitrophenyl)ethyleneglycol as eff photolabile aldehyde ketone protect as acetal ketal photochem cleaveKantevari, S
The current work reports synthesis of 2-methyl-2-napthyl-1,3-dioxolane by acetalization of ethylene glycol with methyl 2-napthyl ketone using several heterogeneous solid acid catalysts including 20% (w/w) Cs"2"."5H"0"."5PW"1"2O"4"0/K-10 (Cs-DTP/K-10), UDCaT-4, UDCaT-5 ...
3-Component methylketone dithiane propargylbromide HgCl2 syn O-propargylglycolaldehyde dithioacetal transform 3-pyranoneBhattacharjya, A