7399-68-0Relevant articles and documents
Facile one-pot synthesis of 2-oxazoline
Jiang, Weinan,Liu, Runhui,Song, Gonghua,Zhou, Min,Zhou, Yang,Zhu, Jipeng
supporting information, (2022/01/28)
We developed a facile one-pot synthesis of 2-oxazolines from carboxylic acid and 2-chloroethyl isocyanate, involving amide bond formation and a following intramolecular cyclization using 4-dimethylaminopyridine as the catalyst. A large variety of functional groups are well tolerated by the mild reaction conditions to afford diverse 2-oxazolines in good to excellent yields. This reaction will keep the chirality of the isocyanate at position 1, the R2 substituted carbon. Microwave-assisted synthesis can further enhance the reaction yield and reduce the reaction time to 5 min. This method facilities the synthesis of 2-oxazolines for diverse applications, such as 2-oxazoline derived polymers and materials.
Mild, Selective Ru-Catalyzed Deuteration Using D2O as a Deuterium Source
Eisele, Pascal,Ullwer, Franziska,Scholz, Sven,Plietker, Bernd
supporting information, p. 16550 - 16554 (2019/12/11)
A method for the selective deuteration of polyfunctional organic molecules using catalytic amounts of [RuCl2(PPh3)3] and D2O as a deuterium source is presented. Through variation of additives like CuI, KOH, and various amounts of zinc powder, orthogonal chemoselectivities in the deuteration process are observed. Mechanistic investigation indicates the presence of different, defined Ru-complexes under the given specific conditions.
A 2 - substituted oxazoline or 2 - substituted piperazine synthetic method (by machine translation)
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Paragraph 0021; 0033, (2017/08/25)
The invention discloses a method for synthesizing 2 - substituted oxazoline or 2 - substituted oxazine new method, by nitrile and amino ethanol or 3 - amino - 1 - propanol as raw material, in the absence of solvent, can be used for the recycling of the sulfur to induce synthesis of 2 - substituted oxazoline and 2 - substituted piperazine. The method of the invention has low cost, simple reaction process, mild reaction conditions, the reaction time is short, the yield and the like, is suitable for the industrial generation. (by machine translation)