Journal
JOURNAL OF ORGANIC CHEMISTRY
Volume 80, Issue 3, Pages 1979-1984Publisher
AMER CHEMICAL SOC
DOI: 10.1021/jo502686t
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Funding
- American Chemical Society Petroleum Research Fund
- Arnold and Mabel Beckman Foundation
- Thomas F. and Kate Miller Jeffress Trust
- University of Richmond
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Calcium triflate has been identified as an efficient catalyst for the cycloaddition of nitrones to donor-acceptor cyclopropanes. The reaction proceeds with good to excellent yields of the corresponding tetrahydro-1,2-oxazines with high levels of diastereoselectivity. The generality of the reaction allowed for the synthesis of tetrahydro-1,2-oxazines bearing alkyl, aryl, and heteroaromatic substitution.
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