SN1 reactions with planar chiral (arene)
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Thomas J.J. Müller; Astrid Netz
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Article
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1999
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Elsevier Science
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French
⚖ 219 KB
Planar chiral ortho substituted (arene)Cr(CO)3-stabilized ct-propargylic cations 4 react in a SN1 fashion with sulfur, nitrogen and 7~-nucleophiles to give regioselectively the corresponding propargyl derivatives 5 in good yields and excellent diastereoselectivities (d.r. > 9: I).