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- W2005077512 abstract "The asymmetric benzannulation of optically active aryl or vinyl (alkoxy)carbene chromium complexes bearing chiral sec. alcohol auxiliaries with 3,3-dimethyl-1-butyne proceeds with moderate to high diastereoselectivities. The best results are obtained with (−)- and (+)-menthol derivatives. The stereoselectivity depends on the unsaturated carbene substituent and the solvent used. Enantiopure S-5-10-η6-tricarbonyl-(2-tert.-butyl-1,4-naphthoquinone)chromium25 was synthesized by intramolecular haptotropic migration of the tricarbonyl chromium fragment within the benzannulation product followed by deprotection and oxidation." @default.
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- W2005077512 date "1997-06-01" @default.
- W2005077512 modified "2023-10-16" @default.
- W2005077512 title "Optically active naphthohydroquinone and naphthoquinone tricarbonyl chromium complexes via diastereoselective benzannulation with sec. alcohol auxiliaries" @default.
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- W2005077512 doi "https://doi.org/10.1016/s0957-4166(97)00142-0" @default.
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