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Gold(III)-mediated contraction of benzene to cyclopentadiene : from p -benziporphyrin to gold(III) true tetraarylcarbaporphyrin.
Autorzy
Rok wydania
2014
Czasopismo
Numer woluminu
20
Strony
1376-1382
DOI
10.1002/chem.201304162
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
The reaction of p-benziporphyrin, sodium tetrachloroaurate(III) dihydrate, and potassium carbonate in dichloromethane yielded gold(III) 5,10,15,20-tetraaryl-21-carbaporphyrin owing to the contraction of p-phenylene to cyclopentadiene. This molecule is the very first representative of a true 5,10,15,20-tetraaryl-21-carbaporphyrin complex where four trigonal donor atoms are involved in equatorial coordination. The contraction adds an unprecedented route to numerous organic transformations of aromatic compounds catalyzed by simple gold(III) compounds. p-Benziporphyrin provided the unique environment to alter the fundamental reactivity of the benzene unit facilitating its contraction to cyclopentadiene.
Słowa kluczowe
C-C activation, cyclopentadiene, gold, porphyrinoids, ring contraction
Adres publiczny
http://dx.doi.org/10.1002/chem.201304162
Strona internetowa wydawcy
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