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Palladium catalyzed [2+2+1] cyclotrimerization of alkynes: selective synthesis of fulvenes

✍ Scribed by Ukkiramapandian Radhakrishnan; Vladimir Gevorgyan; Yoshinori Yamamoto

Book ID
104209989
Publisher
Elsevier Science
Year
2000
Tongue
French
Weight
100 KB
Volume
41
Category
Article
ISSN
0040-4039

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✦ Synopsis

This is the first report on the selective synthesis of fulvenes via a [2+2+1] cyclotrimerization of alkynes under catalytic conditions. The reactions of aliphatic terminal alkynes 1a-e in the presence of a palladium catalyst in toluene gave the cyclotrimerization products 2a-e, not easily available through the previously known methods, in good to fair yields.

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