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In the Arens–van Dorp synthesis the compound ethoxyacetylene [7] is converted to a Grignard reagent and reacted with a ketone, the reaction product is a propargyl alcohol. [ 8 ] [ 9 ] The Isler modification is a modification of Arens–Van Dorp Synthesis where ethoxyacetylene is replaced by β -chlorovinyl ethyl ether and lithium amide .
In thermolysis, water molecules split into hydrogen and oxygen. For example, at 2,200 °C (2,470 K; 3,990 °F) about three percent of all H 2 O are dissociated into various combinations of hydrogen and oxygen atoms, mostly H, H 2, O, O 2, and OH. Other reaction products like H 2 O 2 or HO 2 remain minor. At the very high temperature of 3,000 ...
The reaction of quadricyclane with DEAD is a 2σ + 2σ + 2π cycloaddition that on water takes place within 10 minutes at room temperature with 82% yield. The same reaction in toluene takes 24 hours at 80 °C with 70% yield. An emulsion reaction in fluorinated cyclohexane takes 36 hours and the neat reaction takes even longer (48 hours).
Ethylamine is used as a precursor chemical along with benzonitrile (as opposed to o-chlorobenzonitrile and methylamine in ketamine synthesis) in the clandestine synthesis of cyclidine dissociative anesthetic agents (the analogue of ketamine which is missing the 2-chloro group on the phenyl ring, and its N-ethyl analog) which are closely related ...
A fluorous technology was described by Curran [16] The fluorous synthesis employs functionalized perfluoroalkyl (Rf) groups like 4,4,5,5,6,6,7,7,8,8,9,9,9-Tridecafluorononyl {CF 3 (CF 2) 4 CF 2 CH 2 CH 2-} group attached to substrates or reagents. The Rf groups make it possible to remove either the product or the reagents from the reaction mixture.
It has been reported that formate can be formed by the electrochemical reduction of CO 2 (in the form of bicarbonate) at a lead cathode at pH 8.6: [24] HCO − 3 + H 2 O + 2e − → HCO − 2 + 2OH −. or CO 2 + H 2 O + 2e − → HCO − 2 + OH −. If the feed is CO 2 and oxygen is evolved at the anode, the total reaction is: CO 2 + OH − ...
In organic chemistry, the Mannich reaction is a three-component organic reaction that involves the amino alkylation of an acidic proton next to a carbonyl (C=O) functional group by formaldehyde (H−CHO) and a primary or secondary amine (−NH 2) or ammonia (NH 3). [1] The final product is a β-amino-carbonyl compound also known as a Mannich base.
Another example is in the synthesis of antimalarials as aminoalkylamino derivatives of 2,3-dihydrofuroquinolines [9] These compounds are used as antimalarials. The Gould reaction is also used to convert 5-aminoindole to quinolines for the purpose of synthesizing pyrazolo[4,3- c ]pyrrolo[3,2- f ]quinolin-3-one derivatives as modified ...