94367-56-3Relevant articles and documents
Nickel and Nucleophilic Cobalt-Catalyzed Trideuteriomethylation of Aryl Halides Using Trideuteriomethyl p-Toluenesulfonate
Komeyama, Kimihiro,Yamahata, Yuta,Osaka, Itaru
supporting information, p. 4375 - 4378 (2018/07/29)
Herein, a novel approach for the trideuteriomethylation of aryl halides using nickel and nucleophilic cobalt catalysts and the readily available trideuteriomethyl p-toluenesulfonate (CD3OTs) is described. This method provides access to a wide r
Method for catalytic conversion of cyano group into deuterated methyl, prepared aromatic deuterated methyl compound and application of compound
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Paragraph 0099; 0100; 0101; 0102; 0103, (2017/12/09)
The invention provides a method for catalytic conversion of a cyano group into deuterated methyl, a prepared aromatic deuterated methyl compound and an application of the compound. The method comprises the steps as follows: an aromatic cyano compound reacts to produce the aromatic deuterated methyl compound under the action of a metal catalyst with deuterium gas serving as a deuterium source. The cyano group is directly catalyzed into deuterated methyl with the deuterium gas serving as the deuterium source, the operation is simple, the raw material is cheap and easy to obtain, the reaction yield is high, the product deuteration rate is high, and the method can be applied to mass production. The prepared aromatic deuterated methyl compound can be used as a deuterated medicine or can be used for preparation of a deuterated medicine or deuterated medicine composition, and the pharmacokinetics, pharmacodynamics or metabolism toxicity of the medicine can be reduced while the medicine molecular activity is kept unchanged basically.
Efficient and convenient heterogeneous palladium-catalyzed regioselective deuteration at the benzylic position
Kurita, Takanori,Hattori, Kazuyuki,Seki, Saori,Mizumoto, Takuto,Aoki, Fumiyo,Yamada, Yuki,Ikawa, Kanoko,Maegawa, Tomohiro,Monguchi, Yasunari,Sajiki, Hironao
, p. 664 - 673 (2008/12/21)
The Pd/C-catalyzed efficient and regioselective hydrogen-deuterium (H-D) exchange reaction on the benzylic site proceeded in D2O in the presence of a small amount of H2 gas. The use of the Pd/C-ethylenediamine complex [Pd/C(en)] as a catalyst instead of Pd/C led to the efficient deuterium incorporation into the benzylic site of Obenzyl protective groups without hydrogenolysis. These H-D exchange reactions provide a post synthetic and D2-gas-free deuterium-labeling method on a wide variety of benzylic sites using D2O as the deuterium source and heterogeneous Pd/C or Pd/C(en) as a reusable heterogeneous palladium catalyst under mild and neutral conditions.
