Facile Carbolithiation of Bent Alkyne without Catalyst. Tandem Route to Dibenzo[b,f]pentalenes from Dibenzocyclooctadiyne

Facile Carbolithiation of Bent Alkyne without Catalyst. Tandem Route to Dibenzo[b,f]pentalenes from Dibenzocyclooctadiyne

Nucleophilic addition of RLi to a triple bond of dibenzocycloocta[a,e]diyne provides dibenzo[b,f]pentalene motif through trans-annulation of the resulting vinyllithium. Dibenzopentalene anion thus formed reacts with various electrophiles such as aldehydes, alkyl halides, acid halide, and Me3SiCl to...

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Veröffentlicht in:Chemistry letters 2008-12, Vol.37 (12), p.1296-1297
Hauptverfasser: Babu, Govindarajulu, Orita, Akihiro, Otera, Junzo
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container_title Chemistry letters
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creator Babu, Govindarajulu
Orita, Akihiro
Otera, Junzo
description Nucleophilic addition of RLi to a triple bond of dibenzocycloocta[a,e]diyne provides dibenzo[b,f]pentalene motif through trans-annulation of the resulting vinyllithium. Dibenzopentalene anion thus formed reacts with various electrophiles such as aldehydes, alkyl halides, acid halide, and Me3SiCl to give the corresponding products.
doi_str_mv 10.1246/cl.2008.1296
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title Facile Carbolithiation of Bent Alkyne without Catalyst. Tandem Route to Dibenzo[b,f]pentalenes from Dibenzocyclooctadiyne
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