Journal ArticleDOI
Nickel-catalyzed intramolecular [4+2] dienyne cycloadditions: an efficient new method for the synthesis of polycycles containing cyclohexa-1,4-dienes
Paul A. Wender,Thomas E. Jenkins +1 more
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This article is published in Journal of the American Chemical Society.The article was published on 1989-08-01. It has received 111 citations till now. The article focuses on the topics: Intramolecular force.read more
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The atom economy--a search for synthetic efficiency
TL;DR: Transition metal-catalyzed methods that are both selective and economical for formation of cyclic structures, of great interest for biological purposes, represent an important starting point for this long-term goal.
Journal ArticleDOI
Atomökonomische Synthesen – eine Herausforderung in der Organischen Chemie: die Homogenkatalyse als wegweisende Methode
TL;DR: In this paper, the Ubergangsmetall-komplexe, a komplexer organischer Verbindungen, are investigated, in which a grosen Zahl einfacher Additionsreaktionen and the Minimierung of Abfall-produkten erforderlich.
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Gold-Catalyzed [4C+2C] Cycloadditions of Allenedienes, including an Enantioselective Version with New Phosphoramidite-Based Catalysts: Mechanistic Aspects of the Divergence between [4C+3C] and [4C+2C] Pathways
Isaac Alonso,Beatriz Trillo,Fernando López,Sergi Montserrat,Gregori Ujaque,Luis Castedo,Agustí Lledós,José L. Mascareñas +7 more
TL;DR: Experimental and theoretical data dismiss a cationic mechanism involving intermediate II and suggest that the formation of the [4C+2C] cycloadducts might arise from a 1,2-alkyl migration (ring contraction) in a cycloheptenyl Au-carbene intermediate (IV), itself arising from a [ 4C+3C] concerted cycloaddition of the allenediene.
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New reactions and step economy: the total synthesis of (±)-salsolene oxide based on the type II transition metal-catalyzed intramolecular [4 + 4] cycloaddition
TL;DR: In this paper, the viability of the type II nickel-catalyzed intramolecular [4+4] cycloaddition of bis-dienes was investigated. But the results were limited.
Journal ArticleDOI
Enantioselective, transition metal catalyzed cycloisomerizations.
TL;DR: This review illustrates enantioselective transition-metal promoted skeletal rearrangements of polyunsaturated substrates possessing olefin, alkyne or allene functions, and the mechanisms of chiral induction and stereochemical pathways have not been established so far in any of these reactions.