Copper-Catalyzed Cyclization-Fragmentations of Enynols

Pt and Au are going out of fashion: The [Cu(CH3CN)4][BF4] species effectively catalyzes the cyclization–fragmentation of 5‐en‐1‐yn‐3‐ols. The reactivity of 6‐en‐1‐yn‐4‐ols greatly depends on the catalyst used (see scheme). An unusual fragmentation and metathesis reactions of 6‐en‐1‐yn‐4‐ols have als...

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Bibliographic Details
Published in:Chemistry : a European journal 2011-03, Vol.17 (14), p.3832-3836
Main Authors: Fehr, Charles, Vuagnoux, Magali, Sommer, Horst
Format: Article
Language:English
Subjects:
Chemistry
copper
cycloisomerization
fragmentation
gold
rearrangement
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Summary:Pt and Au are going out of fashion: The [Cu(CH3CN)4][BF4] species effectively catalyzes the cyclization–fragmentation of 5‐en‐1‐yn‐3‐ols. The reactivity of 6‐en‐1‐yn‐4‐ols greatly depends on the catalyst used (see scheme). An unusual fragmentation and metathesis reactions of 6‐en‐1‐yn‐4‐ols have also been detected.
ISSN:0947-6539
1521-3765
DOI:10.1002/chem.201002314