Results 21 to 30 of about 108,684 (302)
Beilstein Journal of Organic Chemistry, 2011 A novel synthetic methodology has been developed for the synthesis of diethyl 5-alkyl/aryl/heteroaryl substituted 3,4-dihydro-2H-pyrrole-4,4-dicarboxylates (also called 2-substituted pyrroline-4,5-dihydro-3,3-dicarboxylic acid diethyl esters) by iodide ...
Satish S. More +4 more
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Fe Analysis on the Formation of Plastic Instabilities in Dynamically Expanded Copper Rings
Engineering Transactions, 2014 In this work the influence of the constitutive description in numerical simulations of the ra- dial expansion of annealed OFHC copper rings has been studied. For that task, three physical- based constitutive models are implemented into the FE code ABAQUS/
C. VELA +2 more
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, 2021 Investigations of the sila-8-membered ring fused biaryls are of important significance for the discovery of new drug lead compounds. However, such compounds are still unknown due to the synthetic challenge.
Xi-Chao, Wang +3 more
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Synthesis of Substituted α-Trifluoromethyl Piperidinic Derivatives
Molecules, 2017 A comprehensive survey of pathways leading to the generation of α-trifluoromethyl monocyclic piperidinic derivatives is provided (65 references).
Sarah Rioton +2 more
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Ring expansion reaction via homolytic pathways
, 1990 The preparation of carbocyclic medium rings by two electron processes is reviewed with particular reference to the synthesis of natural products. The formation of medium rings by oxidative and homolytic methods is also reviewed.
Robertson, J., Robertson, Jeremy
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Seven-Membered Rings through Metal-Free Rearrangement Mediated by Hypervalent Iodine
Molecules, 2015 A versatile and metal-free approach for the synthesis of carbocycles and of heterocycles bearing seven- and eight-membered rings is described. The strategy is based on ring expansion of 1-vinylcycloalkanols (or the corresponding silyl or methyl ether ...
Siguara Bastos Lemos Silva +4 more
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Beilstein Journal of Organic Chemistry, 2022 Alkyl 2-diazo-3-oxoalkanoates generate alkoxycarbonylketenes, which undergo an electrophilic ring expansion with aziridines to afford alkyl 2-(oxazolin-2-yl)alkanoates in good to excellent yields under microwave heating.
Yelong Lei, Jiaxi Xu
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Expanding the Scope of Successive Ring Expansion [PDF]
, 2022 – Expanding the Scope of Successive Ring Expansion This Thesis describes the development of new methodologies to perform ring expansion reactions to generate novel cyclic molecules.
Palate, Kleopas
core
Ring-Expansion and Desulfurisation of Thiophenes with an Aluminium(I) Reagent
, 2023 Reactions of thiophene, 2-methylthiophene, 2-methoxythiophene, 2,3-dimethylthiophene, and benzothiophene with the aluminium(I) complex [{(ArNCMe)2CH}Al] (Ar = 2,6-di-isopropylphenyl) are reported.
Mark, Crimmin +2 more
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Allenes in Manganese(I)-Catalyzed C–C Activation and a Strategy for Cascade Ring Expansion
Cell Reports Physical Science, 2020 Summary: Transition metal-catalyzed C–C bond functionalization has recently been identified as an increasingly versatile tool for organic syntheses, as otherwise unreactive functionalities can be used as efficient handles for synthetic manipulations ...
Hui Wang +2 more
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