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2004
Reactions of organo-metal compounds
O 0350
Lewis Acid Catalyzed Addition of Alkenylzirconocenes to Carbonyl Compounds:
Activity of Trimethylsilyl Triflate. — The addition of alkenylzir46- 060 Remarkable
conocenes to aldehyde (III) or ketones (IX), (XI), and (XIII) is efficiently promoted by
catalytic amounts of TmsOTf to give (E)-allylic alcohols. The low diastereoselectivity
in the reaction of chiral aldehyde (III) is overcome by an oxidation/stereoselective
reduction sequence applied to the mixture of anti/syn diastereomers (IV)/(V). —
(MURAKAMI, T.; FURUSAWA, K.; Synthesis 2004, 10, 1566-1572; Natl. Inst. Adv.
Ind. Sci. Technol., AIST Tsukuba Cent., Tsukuba, Ibaraki 305, Japan; Eng.) — Klein
2004
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