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Electrophilic cyclopropanes in organic synthesis
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This article is published in Accounts of Chemical Research.The article was published on 1979-02-01. It has received 414 citations till now. The article focuses on the topics: Organic synthesis.read more
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Methods of Reactivity Umpolung
TL;DR: There are six principal methods of umpolung: 1 2n-oxidation, heteroatom exchange and modification, homologation and its reversal, the cyclopropane “trick”, use of acetylenes, and redox reactions; under certain circumstances none of these techniques is necessary in cases where direct umpoline is possible.
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A new golden age for donor-acceptor cyclopropanes.
TL;DR: This Review highlights the appropriate tools for successfully employing donor-acceptor cyclopropanes in ring-opening reactions, cycloadditions, and rearrangements.
Journal ArticleDOI
Heterocycles from cyclopropanes: applications in natural product synthesis
Cheryl A. Carson,Michael A. Kerr +1 more
TL;DR: This tutorial review focuses on the latter, describing recent developments and applications of cyclopropane ring-expansion reactions in natural product synthesis and several newly developed methods providing access to densely functionalized heterocycles.
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Recent advances in donor-acceptor (DA) cyclopropanes
Ming Yu,Brian L. Pagenkopf +1 more
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Intramolecular donor–acceptor cyclopropane ring-opening cyclizations
Marchello A. Cavitt,Lien H. Phun +1 more
TL;DR: This tutorial review focalizes on new intramolecular transformations of donor-acceptor cyclopropanes for cycloisomerizations, formal cycloadditions, umpolung reactions, rearrangements and ring-opening lactonizations/lactamizations from 2009 to 2013.
References
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Allylic Sulfoxides: Useful Intermediates in Organic Synthesis
David A. Evans,G. C. Andrews +1 more
TL;DR: Analytical chemistry, as a service-oriented discipline, is entering a transition period when many of the authors' instruments will be automated and placed online, and will require change in their skills and a significant change in the definition of their role in society.
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Highly activated cyclopropane for homoconjugate reactions
S. Danishefsky,R. K. Singh +1 more
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Bicyclo[1.1.0]butane Chemistry. I. The Synthesis and Reactions of 3-Methylbicyclo[1.1.0]butanecarbonitriles
E. P. Blanchard,A. Cairncross +1 more