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2005
Polyphenylalkyne derivatives
Q 0750
Enantioselective Alkynylation of Aromatic Ketones Promoted by (S)-Phenylalanine-Derived β-Amino Alcohol. — The alcohol APP is an effective catalyst for the
13- 102 addition
of alkynylzinc compounds, generated in situ, to aromatic ketones under very
mild conditions. The resulting tertiary propargylic alcohols are obtained with up to 80%
enantioselectivity. The present method does not require the preparation of alkynylzinc
in advance or additional central metal (other than zinc itself). — (LIU, L.; KANG,
Y.-F.; WANG*, R.; ZHOU, Y.-F.; CHEN, C.; NI, M.; GONG, M.-Z.; Tetrahedron:
Asymmetry 15 (2004) 23, 3757-3761; Dep. Biochem. Mol. Biol., Sch. Life Sci.,
Lanzhou Univ., Lanzhou 730000, Peop. Rep. China; Eng.) — Klein
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