92304-84-2Relevant articles and documents
Room-Temperature Palladium-Catalyzed Deuterogenolysis of Carbon Oxygen Bonds towards Deuterated Pharmaceuticals
Ou, Wei,Xiang, Xudong,Zou, Ru,Xu, Qing,Loh, Kian Ping,Su, Chenliang
, p. 6357 - 6361 (2021)
Site-specific incorporation of deuterium into drug molecules to study and improve their biological properties is crucial for drug discovery and development. Herein, we describe a palladium-catalyzed room-temperature deuterogenolysis of carbon–oxygen bonds
Method for preparing deuterated compound through decarboxylation and deuteration of carboxylic acid
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, (2021/06/13)
The invention relates to a method for preparing a deuterated compound through decarboxylation and deuteration of carboxylic acid. According to the method, a carboxylic acid compound is used as a raw material, hydrogen atoms of carboxylate radicals are exc
The Rearrangement of Aromatic Compounds. Part 3. The Mechanism of Rearrangement of Nitrated Hydrocarbons in Trifluoromethanesulphonic Acid
Bullen, John V.,Ridd, John H.,Sabek, Omaima
, p. 1681 - 1685 (2007/10/02)
1,3-Dialkyl-2-nitrobenzenes (C6H3R2NO2; R = Me, Et, and Pri) rearrange in trifluoromethanesulphonic acid to the corresponding 4-nitro derivatives; with R = Et, this reaction is accompanied by dehydration to 7-ethyl-3-methylanthranil.The reaction rate increases markedly with the size of the alkyl group; with R = Me, the reaction was studied at 110 deg C but, with R = Pri, temperatures of 36-54 deg C were used.The studies with R = Me show the reaction to be first-order with the rate coefficients (k1) increasing rapidly with the acidity of the solution 1)/d(-H0)> = 1.45, decreasing with acidity to o.49.Double-labelling experiments with 1H and 15N show the reaction to be intramolecular. 1,2,4-Trimethyl-3-nitrobenzene also rearranges under these conditions to give mainly the 5-nitro isomer.The above results are discussed in terms of a direct 1,3-shift of the nitro group.