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Synlett 2001; 2001(11): 1690-1692
DOI: 10.1055/s-2001-18094
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Efficient Dehydration of Hydroxyenals and -enones: HfCl4 · (THF)2 as an effective Catalyst for Di-, Tri- and Tetraene Formation

Susumu Saito* , Takashi Nagahara, Hisashi Yamamoto
  • *Graduate School of Engineering, Nagoya University, SORST, Japan Science and Technology Corporation (JST), Chikusa, Nagoya 464-8603, Japan
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Publication Date:
29 October 2001 (online)

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Polyenes were easily obtained from hydroxy(tri, di)ene-containing carbonyl compounds in good to excellent yields in the presence of catalytic HfCl4 · (THF)2.

aldol reactions - carbonyl - catalysis - eliminations - Lewis acids