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Synthesis 1995; 1995(11): 1371-1372
DOI: 10.1055/s-1995-4115
short paper
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Practical Synthesis of (E)-Pent-3-en-2-one and Its Conversion to (E)-2-Triethylsilyloxypenta-1,3-diene

Mitsuhiro Arisawa, Yasuhiro Torisawa, Masako Nakagawa*
  • *Faculty of Pharmaceutical Sciences, Chiba University, 1-33, Yayoi-cho, Inage-ku, Chiba-shi, 263 Japan, Fax +81(43)2551574
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Publication Date:
31 December 2000 (online)

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An improved procedure for the preparation of (E)-pent-3-en-2-one in high yields utilizing a Friedel-Crafts type alkylation of crotonyl chloride with trimethylaluminum is reported. Conversion of this enone into the corresponding enol silyl ether is also described.

acid chloride - trialkylaluminum - ketone - pent-3-en-2-one - 2-triethylsiloxypenta-1,3-diene