Journal
TETRAHEDRON
Volume 65, Issue 51, Pages 10552-10564Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2009.10.077
Keywords
Cyclopropene; Ene-reaction; Oligocyclopropanes; Chirality; Stereoselectivity; Cycloaddition
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Funding
- INTAS program
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1-Trimethylsilyl-3-phenylcyclopropene and its 2D-analog undergo a highly stereocontrolled ene-reaction to give a single dinner. Further reaction leads to one or more trimers derived through two ene-reactions. The dinner formed easily undergoes cycloaddition with active dienes and nitrile oxides while the trimers do not react under the same conditions. The first enantioselective example of an ene-reaction of cyclopropene derivatives using optically active 1-trimethylsilyl-3S-phenylcyclopropene is also discussed. (C) 2009 Elsevier Ltd. All rights reserved.
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