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Genetische Risiken bei Eierstockkrebs sind häufiger als angenommen, I care Webseminare: Generalistik unter Pandemiebedingungen, Dr Chada Raji Reddy joins the Thieme Chemistry Journal SynOpen, Hydrogen-Bond-Promoted Metal-Free Hydroamination of Alkynes: J. Bahri, N. Tanbouza, T. Ollevier, M. Taillefer, F. Monnier The addition of an amine NH‐functionality to alkenes (including vinyl arenes, conjugated dienes, allenes or ring‐strained alkenes), the so‐called hydroamination, represents a simple and highly atom‐economical approach for the synthesis of nitrogen‐containing products. Metal-free visible light photoredox enables generation of carbyne equivalents
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�{^4ɫ��k����jo��\��d"�@o�|� @�>�j(���V�-c?��f��}θ�Y"LU$��-����H���0�:���괡����6�b�e�$�ǣ��`�����ǂ@3ܳ���u� z� %nm �MF� Dual Photoredox Catalysis: The Merger of Photoredox Catalysis with Other Catalytic Activation Modes. Wei Wei, Leilei Wang, Pengli Bao, Yun Shao, Huilan Yue, Daoshan Yang, Xiaobo Yang, Xiaohui Zhao. . However, hydroamination reactions of alkynes and Aza‐Michael reactions involving the addition of an N‐H fragment across the conjugated or otherwise activated double bond of a Michael acceptor are not covered. April 2020; Synfacts 16(4) DOI: 10.1055/s-0040-1707670. Nathaniel Corrigan, Sivaprakash Shanmugam, Jiangtao Xu, Cyrille Boyer. ChemInform Abstract: Broensted Acid Catalyzed Asymmetric Hydroamination of Alkenes: Synthesis of Pyrrolidines Bearing a Tetrasubstituted Carbon Stereocenter., anie_201501762_sm_miscellaneous_information.pdf. Colin R. Hesp, Melissa J. MacDonald, M. Mehdi Zahedi, Didier A. Bilodeau, Shu-Bin Zhao, Marc Pesant, and André M. Beauchemin . Sai-Hu Cai, Ding-Xing Wang, Lu Ye, Ze-Yao Liu, Chao Feng, Teck-Peng Loh. N
Ranging from less reactive substrates such as ethylene and unactivated alkenes, to slightly activated substrates, such as vinyl arenes, and more activated substrates, including conjugated dienes, allenes and strained alkenes. Chong Li, Zhi-Chao Qi, Qiang Yang, Xiao-Yue Qiang, Shang-Dong Yang. Sebastian Govaerts, Alexander Nyuchev, Timothy Noel. Lei Zhou, Mohammad Lokman Hossain, Tiebo Xiao. Amino- and azidotrifluoromethylation of alkenes. Photophysics and Photochemistry of Conformationally Restricted Triarylmethanes: Application as Photoredox Catalysts. Butyrolactone Synthesis via Polar Radical Crossover Cycloaddition Reactions: Diastereoselective Syntheses of Methylenolactocin and Protolichesterinic Acid. Copper Hydride Catalyzed Hydroamination of Alkenes and Alkynes. The direct anti-Markovnikov addition of mineral acids to styrenes. Run Lin, Hongnan Sun, Chao Yang, Wenbo Shen, Wujiong Xia. Professor Ollevier said: “In the absence of any catalyst, additive, or even purification, (E)-enamines were synthesized by a streamlined hydroamination of alkynes in ethylene glycol as the solvent.”. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. The scope of alkene hydroaminations is very broad and includes unactivated and activated alkenes as well as primary and secondary alkyl- and arylamines. Chenyu Wu, Nathaniel Corrigan, Chern-Hooi Lim, Kenward Jung, Jian Zhu, Garret Miyake, Jiangtao Xu. ]quinazolin-6-one derivatives. The addition of amines to slightly activated alkenes, such as vinyl arenes, 1,3‐dienes, strained alkenes (norbornene derivatives, methylenecyclopropenes) and allenes is closely related and is covered as well. Principles of Photochemical Activation Toward Artificial Photosynthesis and Organic Transformations. Catalytic Hydroamination of Unactivated Olefins Using a Co Catalyst for Complex Molecule Synthesis. Phosphoric Acid-Catalyzed Asymmetric Classic Passerini Reaction. To illustrate this progress, the review will mostly focus on recent develop- ments in the field of intermolecular hydroamination of alkynes. Heterocyclic Chemistry - A Mature Area in Its Infancy!. Synthesis of Enantioenriched Pyrrolidines via Gold-Catalyzed Tandem Cycloisomerization/Hydrogenation of Chiral Homopropargyl Sulfonamides. Kuai Wang, Ling-Guo Meng, and Lei Wang . Get article recommendations from ACS based on references in your Mendeley library. Sixto J. Pérez, Martín A. Purino, Daniel A. Cruz, Juan M. López-Soria, Rubén M. Carballo, Miguel A. Ramírez, Israel Fernández, Víctor S. Martín, Juan I. Padrón. - and
Pushing the boundaries of C–H bond functionalization chemistry using flow technology. Qilei Zhu, David E. Graff, and Robert R. Knowles . Nicholas
Christopher K. Prier, David W. C. MacMillan. Acridinium-Based Photocatalysts: A Sustainable Option in Photoredox Catalysis. Zhongbo Yang, Han Li, Long Zhang, Ming-Tian Zhang, Jin-Pei Cheng, Sanzhong Luo. Phosphoric Acid-Catalyzed Asymmetric Synthesis of SPINOL Derivatives. Der Thieme.de Webshop: Bücher, E-Books, Fachzeitschriften, elektronische Lösungen und mehr finden Sie unter, Bücher versandkostenfrei innerhalb Deutschlands, Selenium Tetrachloride Catalyzed Iodination of (Hetero)Arenes, Pd-Catalyzed Synthesis of N-Allyloxypyrrolidinediones, A Novel Approach to Diarylated Esters and Phosphonates, One-Pot Access to 2-Aryl-3-(arylmethyl)chromones, Benzoazepinoindoles – A New Class of Heterocycles, Professor M Kevin Brown Appointed as Volume Editor for Science of Synthesis Volume 23, 1,2,4,5-Tetrazine Derivatives from Arylsulfonylhydrazones, Mono- and Dihalogenation of 2-Aminopyrazine, Novel Approach to Antihistamine-type Scaffolds, Prof. Xuefeng Jiang and Dr. Ming Wang New Science of Synthesis Volume Editors, Professor Christoph Marschner New Science of Synthesis Volume Editor, Ten aspiring young chemists win poster prizes at OMCOS 20, An Improved Synthesis of 2,5-Disubstituted Tetrazoles, Cu(II)-Catalyzed Beckmann Rearrangement of Ketones, Allylic C–H Alkynylation via Copper Photocatalysis, Synthesis of Dumbbell-like Amine-Functionalized Bis-C60 Fullerene, Total Syntheses of (+)-Alexine and Related Alkaloids, Poster Prize awarded at Bioheterocycles 2019, Science of Synthesis Editorial Board Meeting 2019, Poster Prize awarded at Twente / Mainz Symposium, First Total Synthesis of Artekeiskeanol A, C and Altissimacoumarin D, Iodoglycosylation and Iodocarboxylation of Glycals, Gold(III)-Catalyzed Synthesis of N,N-Aryl,Benzyl-amines in Water, Synthesis of Fatty Acid Intermediates via Hudrlik–Peterson Reaction, Recyclable Graphene Oxide Nanosheet Supported Catalyst, A Stereoselective Synthesis of the ACE Inhibitor Trandolapril, New Entry to 3-Arylglutaconic Acid Derivatives, Asymmetric Synthesis of α-Hydrazino Ketones, Synthesis of (–)-Boschnialactone and γ-Lycorane, Synthesis of the ABC-Ring System of Various Alkaloids, Synthesis of 4-(Arylmethyl)proline Derivatives, Efficient Synthesis of a 5α-Reductase Inhibitor, Epoxidation of a Cyclic Allyl-Amine by a Bifunctional Peracid, Radiochemical Synthesis of 2-[18F]Fluorophenylalanine, Asymmetric Mannich-Type Reaction of an α-Trifluoromethyl Amide, Chemoselective Aerobic Oxidation of Benzylic Alcohols, One-Pot Reductive Conversion of Aldehydes into Acetic Esters, Visible-Light-Induced Adamantylation of Azoles, Thieme Chemistry provides 700,000 structures to PubChem, Psychiatrie, Psychotherapie und Psychosomatik, Fachcommunity für Geburtshilfe und Frauenheilkunde. Gold-Catalyzed Intermolecular Anti-Markovnikov Hydroamination of Alkylidenecyclopropanes. Alberto Vega‐Peñaloza, Javier Mateos, Xavier Companyó, Margarita Escudero‐Casao, Luca Dell'Amico. Abstract. Catalytic Stereoselective SN1‐Type Reactions Promoted by Chiral Phosphoric Acids as Brønsted Acid Catalysts. Catalyst-Controlled Wacker-Type Oxidation: Facile Access to Functionalized Aldehydes. Visible-Light-Catalyzed Phosphonation-Annulation: an Efficient Strategy to Synthesize β-Phosphonopyrrolidines and β-Phosphonolactones. Use the link below to share a full-text version of this article with your friends and colleagues. Jingnan Zhao, Fan Yang, Zongyi Yu, Xiaofei Tang, Yufeng Wu, Cunfei Ma, Qingwei Meng. © 2008-2020 ResearchGate GmbH. 2
Lena Pitzer, Frederik Sandfort, Felix Strieth‐Kalthoff, Frank Glorius. The Coupling of Tertiary Amines with Acrylate Derivatives via Visible-Light Photoredox Catalysis. Lichtgetriebene Ein‐Elektronen‐Transferprozesse als Funktionsprinzip in der Schwefel‐ und Selen‐Multikatalyse. Xiao-Qiang Hu, Jun Chen, Jia-Rong Chen, Dong-Mei Yan, Wen-Jing Xiao. Ning Xu, Pinhua Li, Zuguang Xie, Lei Wang. Terminal Hydroboration of Branched Alkenes. The methodology is compatible with sensitive functionalities and is successful with several different types of alkenes and sulfides. the Altmetric Attention Score and how the score is calculated. Organic Molecular Catalysts in Radical Chemistry: Challenges Toward Selective Transformations. -Containing Heterocyclic Compounds Using Visible-light Photoredox Catalysis. Visible-Light-Mediated Thiol–Ene Reactions through Organic Photoredox Catalysis.