67434-29-1Relevant academic research and scientific papers
Silver-Catalyzed Acyl Nitrene Transfer Reactions Involving Dioxazolones: Direct Assembly of N-Acylureas
Yang, Zheng-Lin,Xu, Xin-Liang,Chen, Xue-Rong,Mao, Zhi-Feng,Zhou, Yi-Feng
supporting information, p. 648 - 652 (2020/12/21)
Dioxazolones and isocyanides are useful synthetic building blocks, and have attracted significant attention from researchers. However, the silver-catalyzed nitrene transfer reaction of dioxazolones has not been investigated to date. Herein, a silver-catalyzed acyl nitrene transfer reaction involving dioxazolones, isocyanides, and water was realized in the presence of Ag2O to afford a series of N-acylureas in moderate to good yields.
Silver-Catalyzed Chemoselective [4+2] Annulation of Two Isocyanides: A General Route to Pyridone-Fused Carbo- and Heterocycles
Hu, Zhongyan,Dong, Jinhuan,Men, Yang,Lin, Zhichen,Cai, Jinxiong,Xu, Xianxiu
supporting information, p. 1805 - 1809 (2017/02/05)
A silver-catalyzed chemoselective [4+2] annulation of aryl and heteroaryl isocyanides with α-substituted isocyanoacetamides was developed for the facile and efficient synthesis of 2-aminoquinolones, naphthyridines, and phenanthrolines. A mechanism for this multistep domino reaction is proposed on the basis of a13C-labeling experiment, according to which an unprecedented chemoselective heterodimerization of two different isocyanides generates an α-amidoketenimine intermediate, which undergoes 1,3-amino migration to form an α-imidoylketene, followed by 6 π electrocyclization.
Easy Synthesis of Two Positional Isomeric Tetrazole Libraries
Wang, Yuanze,Patil, Pravin,D?mling, Alexander
, p. 3701 - 3712 (2016/11/08)
A fast and efficient synthesis of libraries of positional isomeric 1H-tetrazoles and 5H-tetrazoles, for the purpose of testing binding hypothesis of isomeric tetrazoles in fragment-based drug discovery, is described.
Exploiting the Electrophilic and Nucleophilic Dual Role of Nitrile Imines: One-Pot, Three-Component Synthesis of Furo[2,3-d]pyridazin-4(5H)-ones
Giustiniano, Mariateresa,Mercalli, Valentina,Amato, Jussara,Novellino, Ettore,Tron, Gian Cesare
supporting information, p. 3964 - 3967 (2015/09/01)
An expeditious multicomponent reaction to synthesize tetrasubstituted furo[2,3-d]pyridazin-4(5H)-ones is reported. In brief, hydrazonoyl chlorides react with isocyanoacetamides, in the presence of TEA, to give 1,3-oxazol-2-hydrazones which, without being isolated, can react with dimethylacetylene dicarboxylate to afford furo[2,3-d]pyridazin-4(5H)-ones with an unprecedented level of complexity in a triple domino Diels-Alder/retro-Diels-Alder/lactamization reaction sequence.
Synthesis of 1,2,4-triazolines: Base-catalyzed hydrazination/cyclization cascade of α-isocyano esters and amides
Monge, David,Jensen, Kim L.,Marin, Irene,Jorgensen, Karl Anker
supporting information; scheme or table, p. 328 - 331 (2011/03/23)
A convenient, efficient synthesis of 1,2,4-triazolines from α-isocyano esters/amides and azodicarboxylates is presented. The developed reaction cascade is based on a base-catalyzed hydrazination-type reaction followed by a subsequent cyclization providing
3-(4-FLUOROPHENYL)-3-HYDROXY-2-AMINO-PROPIONIC ACID AMIDES AND RELATED COMPOUNDS HAVING ANALGESIC ACTIVITY
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Page/Page column 19; 40-41, (2009/10/09)
Compounds according to the formula below are disclosed herein: Therapeutic methods for the treatment of pain, compositions, and medicaments related thereto are also disclosed.
METHODS FOR TREATING CHRONIC PAIN USING 3-ARYL-3-HYDROXY-2-AMINO-PROPIONIC ACID AMIDES, 3-HETEROARYL-3-HYDROXY-2-AMINO-PROPIONIC ACID AMIDES AND RELATED COMPOUNDS
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Page/Page column 58, (2010/11/29)
Disclosed herein are methods of treating a patient suffering from one or more types of chronic pain using compounds of Formulas 1 and 2 wherein the variables have the meaning disclosed in the specification
Mono alkylation of α-isocyano acetamide to its higher homologues
Housseman, Christopher,Zhu, Jieping
, p. 1777 - 1779 (2008/02/04)
Alkylation of α-isocyano acetamide (2) with alkyl halide in MeCN at 0 °C in the presence of cesium hydroxide afforded the mono-alkylated product 1 in good to excellent yield. Georg Thieme Verlag Stuttgart.
Synthesis and Herbicidal Activities of &α-Isocyanocycloalkylideneacetamides
Nunami, Ken-ichi,Suzuki, Mamoru,Hayashi, Kimiaki,Matsumoto, Kazuo,Yoneda, Naoto,Takiguchi, Kazuo
, p. 3023 - 3028 (2007/10/02)
Various α-isocyanocycloalkylideneacetamides were synthetised by the reaction of isocyanoacetamides with ketones following by dehydration.These compounds were examined for their inhibitory activity against the germination of rice, cucumber and radish seeds
