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Synthesis and nucleophilic substitution of stable 6-halo-pentafulvenes

✍ Scribed by Hans-Peter Krimmer; Bernd Stowasser; Klaus Hafner

Publisher
Elsevier Science
Year
1982
Tongue
French
Weight
216 KB
Volume
23
Category
Article
ISSN
0040-4039

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✦ Synopsis

The reactlon of 2,4-dl-t-butyl-cyclopentadlene-I-carbaldehyde with oxalyl chloride or oxalyl bromide provides stable 6-chloro-and 6bromo-pentafulvenes, respectively Several nucleophlllc displacement reactIons of the new compounds are described Pentafulvenes carrying electron donating or wIthdrawIng substltuents III posltlon 6 are of theoretical and preparative importance They proved to be valuable synthons, e g for the synthesis

' H-NMR 6= 1 19(s, 9H, tBu), 1 4o(s,

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