289895-99-4Relevant academic research and scientific papers
13C NMR of thia- or aza-substituted butyric acid derivatives
Froehlich, Johannes,Sauter, Fritz,Milata, Viktor
, p. 113 - 114 (2001)
Eight thia- or aza-substituted butyric acid derivatives were prepared and the influence of these substituents on aromatic 13C NMR shifts was studied. Copyright
PYRIMIDINONE DERIVATIVES, PREPARATION THEREOF AND PHARMACEUTICAL USE THEREOF
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Paragraph 0367-0368, (2013/11/06)
The invention relates to novel products of formula (Ia) or (Ib): these products being in all the isomeric forms and salts as drugs, notably as anticancer drugs.
Catalyst-free Strecker reaction in water: A simple and efficient protocol using acetone cyanohydrin as cyanide source
Galletti, Paola,Pori, Matteo,Giacomini, Daria
experimental part, p. 3896 - 3903 (2011/09/12)
A simple, convenient, and practical method for the synthesis of α-amino nitriles through a one-pot, three-component Strecker reaction of a carbonyl compound, amine, and acetone cyanohydrin in water has been developed. Reactions proceed very efficiently without any catalyst at room temperature with high chemoselectivity and give, in some cases, the expected α-amino nitrile pure after direct separation from water. The protocol is particularly efficient for both aliphatic and aromatic aldehydes, and cyclic ketones, in combination with primary and secondary amines. An unusual application of the Strecker reaction to 1,2-diamines to obtain 1,2-diamino nitriles, and to cyclic secondary amines is reported. Copyright
Al-MCM-41 catalyzed three-component Strecker-type synthesis of α-aminonitriles
Iwanami, Katsuyuki,Seo, Hana,Choi, Jun-Chul,Sakakura, Toshiyasu,Yasuda, Hiroyuki
experimental part, p. 1898 - 1901 (2010/04/06)
Mesoporous aluminosilicate (Al-MCM-41) efficiently catalyzed the three-component Strecker-type reaction of benzylacetone and aniline with trimethylsilyl cyanide in CH2Cl2 at room temperature to afford the corresponding α-aminonitrile in excellent yields (up to 97%). Mesoporous silica (MCM-41), amorphous SiO2-Al2O3, and H-Y and H-ZSM-5 zeolites also catalyzed this reaction, but gave the desired product in lower yields. The Al-MCM-41 catalyzed three-component Strecker-type reaction was applicable to a wide range of ketones, aldehydes, and amines. Furthermore, the Al-MCM-41 catalyst could be applied to a fixed-bed flow reactor: The desired α-aminonitrile derivative was constantly produced in nearly 80% yields for 48 h.
Solvent-free synthesis of racemic α-aminonitriles
Baeza, Alejandro,Najera, Carmen,Sansano, Jose M.
, p. 1230 - 1234 (2008/02/02)
A very simple one-step, environmentally friendly procedure for the synthesis of α-aminonitriles from aldehydes and ketones, using trimethylsilyl cyanide in the absence of solvent, is reported. The active catalyst of this three-component (Strecker) reaction was the amine employed in the transformation. In general, aldehydes react more rapidly than ketones and give almost quantitative yields of the corresponding α-aminonitriles in less than fifteen minutes. However, only cyclic ketones afford the corresponding α-aminonitriles in excellent chemical yields under these conditions. Georg Thieme Verlag Stuttgart.
Influence of some thia- or azasubstituted butyric acid derivatives on the chemical shift of the benzene ring carbon atoms
Froehlich, Johannes,Sauter, Fritz,Milata, Viktor
, p. 616 - 619 (2007/10/03)
Eight thia- or azasubstituted butyric acid derivatives were prepared and the influence of these substituents on the chemical shifts of the benzene ring carbon atoms was studied.
