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Synthesis 2007(3): 442-446
DOI: 10.1055/s-2007-965882
DOI: 10.1055/s-2007-965882
PAPER
© Georg Thieme Verlag Stuttgart · New YorkPauson-Khand Carbonylative Cocyclizations of Acetylenes with Cyclopropylallenes [1]
Weitere Informationen
Received
14 July 2006
Publikationsdatum:
12. Januar 2007 (online)
Publikationsverlauf
Publikationsdatum:
12. Januar 2007 (online)
Abstract
The Pauson-Khand-like carbonylative cocyclizations of alkynes with cyclopropylallene and with 1,3-dicyclopropylallene occur regioselectively and lead to 4-(cyclopropylmethylene)cyclopentenones (43-59% for six examples).
Key words
cobalt complexes - cycloaddition - cyclopropylallenes - cyclopentenones - small rings
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