Journal
TETRAHEDRON
Volume 64, Issue 28, Pages 6670-6674Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2008.05.016
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A facile methodology for the preparation of highly functionalized trans-1,2-cyclopropanes containing p-trifluoromethylphenyl group 3 is described. Arsonium bromides 1 reacted with electron-deficient olefins 2 in the presence of K2CO3 to provide 3 stereoselectively in moderate to good yields. This process has been successfully applied to the construction of cyclopropane ring fused pyridazinone derivatives 4 or pyrazole derivatives 5. (C) 2008 Elsevier Ltd. All rights reserved.
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