53181-22-9Relevant academic research and scientific papers
Phosphine-Catalyzed Synthesis of Chiral N-Heterocycles through (Asymmetric) P(III)/P(V) Redox Cycling
Lorton, Charlotte,Saleh, Nidal,Voituriez, Arnaud
supporting information, p. 3340 - 3344 (2021/06/26)
Phosphine-catalyzed tandem Michael addition/intramolecular Wittig reactions have been developed for the synthesis of chiral 2,5-dihydro-1H-pyrrole and tetrahydropyridine derivatives. These processes have been rendered catalytic in phosphine, thanks to the in situ reduction of phosphine oxide by phenylsilane. Furthermore, catalytic and asymmetric P(III)/P(V) processes were implemented using enantiopure chiral phosphines.
Regioselective Synthesis of 2-Arylindoles via Palladium-Catalyzed Cyclization of Phenylglyoxal and 2-Anilinoacetophenones with Anilines
Benitez-Medina, G. Eliad,Ortiz-Soto, Sofía,Cabrera, Armando,Amézquita-Valencia, Manuel
, p. 3763 - 3770 (2019/06/24)
A versatile route has been developed for the synthesis of 2-arylindoles using a Pd-catalyzed tandem process. Under reductive conditions, different 2-arylindoles were synthesized from phenylglyoxal and aniline. This synthetic methodology involves a tandem reaction of four steps with high regioselectivity. Alternatively, 2-anilinoacetophenones intermediates also can be using to give access to the corresponding 2-arylindoles.
Iodine monobromide catalysed regioselective synthesis of 3-arylquinolines from α-aminoacetophenones and: Trans -β-nitrostyrenes
Gattu, Radhakrishna,Mondal, Santa,Ali, Saghir,Khan, Abu T.
supporting information, p. 347 - 353 (2019/01/10)
A simple and efficient method for regioselective synthesis of 3-arylquinolines is described from α-aminoacetophenones and trans-β-nitrostyrenes using 20 mol% iodine monobromide as a catalyst in acetonitrile solvent at 80 °C. The present method involves tandem reaction of α-aminoacetophenones and trans-β-nitrostyrenes, formation of two new C-C bonds and cleavage of one C-C bond in a single step. The salient features of the protocol are metal- and oxidant-free reaction conditions, broad substrate scope, and good yields.
A one-pot and three-component synthetic approach for the preparation of asymmetric and multi-substituted 1,4-dihydropyrazines
Peytam, Fariba,Adib, Mehdi,Shourgeshty, Reihaneh,Rahmanian-Jazi, Mahmoud,Jahani, Mehdi,Larijani, Bagher,Mahdavi, Mohammad
supporting information, (2019/11/11)
An efficient, one-pot and three-component synthesis of a new series of 2-acyl-3,4,6-triaryl-1,4-dihydropyrazines is described. This two-step strategy involves treatment of phenacyl bromides and anilines to give the nucleophilic substitution intermediate f
CERAMIDE GALACTOSYLTRANSFERASE INHIBITORS FOR THE TREATMENT OF DISEASE
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Paragraph 000358; 000359; 000449; 000450, (2018/01/17)
Described herein are compounds, methods of making such compounds, pharmaceutical compositions and medicaments containing such compounds, and methods of using such compounds to treat or prevent diseases or disorders associated with the enzyme ceramide galactosyltransferase (CGT), such as, for example, lysosomal storage diseases. Examples of lysosomal storage diseases include, for example, Krabbe disease and Metachromatic Leukodystrophy.
Copper-catalyzed oxidative cross-coupling of α-aminocarbonyl compounds with primary amines toward 2-oxo-acetamidines
Chen, Chuang,Zhu, Menghua,Jiang, Lihui,Zeng, Zebing,Yi, Niannian,Xiang, Jiannan
supporting information, p. 8134 - 8139 (2017/10/10)
A general and mild method for the construction of a carbon-nitrogen bond via copper-catalyzed oxidative cross-coupling of amines with α-aminocarbonyl compounds was achieved. Amines, either aliphatic primary amines, aromatic primary amines or secondary amines can be used as the starting materials. When R2 was different from R3, two isomers would be observed. Therefore, this reaction system has a broad substrate scope and provides a facile pathway for the synthesis of 2-oxo-acetamidines.
Sequential One-Pot Synthesis of Imidazoles and 2H-Imidazolones from β-Ketoamines, Acylating Agents and Ammonium Acetate
Jalani, Hitesh B.,Venkateswararao, Eeda,Manickam, Manoj,Jung, Sang-Hun
supporting information, p. 1966 - 1970 (2016/12/16)
An efficient, practical, straight forward, and transition metal-free three-component synthesis of diversely substituted imidazoles and 2H-imidazolones from β-ketoamines, acylating agents, and ammonium acetate has been described herein. This approach invol
Synthesis of Multiple-Substituted Pyrroles via Gold(I)-Catalyzed Hydroamination/Cyclization Cascade
Li, Xiangdong,Chen, Ming,Xie, Xin,Sun, Ning,Li, Shi,Liu, Yuanhong
supporting information, p. 2984 - 2987 (2015/06/30)
A gold-catalyzed cascade hydroamination/cyclization reaction of α-amino ketones with alkynes to form substituted pyrroles has been developed. The method offers several advantages such as high regioselectivity with the tested cases, wide functional group tolerance, and easily accessible starting materials. The synthetic utility of the obtained pyrrole products was demonstrated by their efficient transformations to 2-vinylated pyrroles via gold-catalyzed intermolecular hydroarylation.
New efficient synthesis of 1,4-benzodiazepin-5-ones by catalytic aza-Wittig reaction
Wang, Long,Qin, Ru-Qing,Yan, Hong-Ye,Ding, Ming-Wu
, p. 3522 - 3528 (2015/11/17)
1,4-Benzodiazepin-5-ones were synthesized in 71-89% yields from 2-isocyanato-N-(2-oxoalkyl)benzamides via a new catalytic intramolecular aza-Wittig reaction. Starting from easily accessible phthalic anhydride and α-arylamino ketones, the corresponding 2-{[(2-oxoalkyl)amino]carbonyl}benzoic acids underwent sequential formation of the acid azide and Curtis rearrangement to give 2-isocyanato-N-(2-oxoalkyl)benzamides that were reacted directly to give the final 2,4-diaryl-3,4-dihydro-5H-1,4-benzodiazepin-5-ones and 4-aryl-2-tert-butyl-3,4-dihydro-5H-1,4-benzodiazepin-5-ones.
One-Pot Metal-Free Cascade Synthesis of 2-(Perfluoroalkyl)pyrroles
Sun, Xuechun,Han, Jing,Chen, Jie,Deng, Hongmei,Shao, Min,Zhang, Hui,Cao, Weiguo
supporting information, p. 7086 - 7090 (2015/11/16)
An efficient synthesis of 2-(perfluoroalkyl)pyrroles that employs a sequential one-pot three-component reaction between substituted ω-bromoacetophenones, anilines, and methyl perfluoroalk-2-ynoates has been developed. This transition-metal-free cascade pr
