- A new organocatalytic process of cyclotrimerization of acetylenic ketones mediated by 2,4-pentanedione
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A new organocatalytic process of cyclotrimerization of the aliphatic and aromatic acetylenic ketones was developed. The reaction catalyzed by DMAP in the presence of 2,4-pentanedione gave 1,3,5-trisubstituted benzenes in almost quantitative yields under very mild conditions. 2,4-Pentanedione was used as a co-catalyst to promote the reaction efficiently, particularly for aliphatic acetylenic ketones. Georg Thieme Verlag Stuttgart.
- Zhou, Qing-Fa,Yang, Fei,Guo, Qing-Xiang,Xue, Song
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p. 215 - 218
(2007/10/03)
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