1,720,995 research outputs found
ChemInform Abstract: Simple Access to 5‐Carboalkoxy‐2,3‐dihydro‐4H‐pyran‐4‐ones via Domino Acylative Electrocyclization: The First Three Step Total Synthesis of the Dihydronaphthopyran‐4‐one Class of Natural Products.
No full text/Cu‐Mediated Self‐Sorting Domino Reaction of Aryl β‐Ketoesters into Symmetrical 2‐Carboalkoxy‐1,4‐enediones: Application to Synthesis of Pyrazine, β‐Carboline and Quinoxalines.
No full textTransition metal mediated selective C vs N arylation of 2-aminonaphthoquinone and its application toward the synthesis of benzocarbazoledione
No full textBF3OEt2TFAA Mediated Tetra-Functionalization of Amino Acids - Synthesis of Di- and Tri-Substituted 2Trifluoromethyl Oxazoles in One Pot
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ChemInform Abstract: Copper‐Mediated Selective C—H Activation and Cross‐Dehydrogenative C—N Coupling of 2′‐Aminoacetophenones.
No full textTotal synthesis of (+)-grandiamide D, dasyclamide and gigantamide A from a Baylis–Hillman adduct: A unified biomimetic approach
No full textA unified strategy was followed for the synthesis of three putrescine bisamides, (+)-grandiamide D, dasyclamide and gigantamide A, isolated from leaves of Aglaia gigantea, by making use of a common synthetic intermediate prepared by the Baylis–Hillman reaction. Asymmetric synthesis of the natural (+)-grandiamide D was accomplished from camphor sultam
ChemInform Abstract: 2,2-Bis(ethoxycarbonyl)vinyl (BECV) as a Versatile Amine Protecting Group for Selective Functional-Group Transformations.
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Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
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