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Solvent-free C–H alkynylation of azulenes.
Autorzy
Rok wydania
2021
Czasopismo
Numer woluminu
8
Strony
5674-5680
DOI
10.1039/d1qo01091c
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
A solvent-free coupling of azulenes with 1-haloalkynes and 1-halopolyynes has been developed. 1-Haloalkynes were used as substrates and the reaction needs only simple grinding of substrates in a mortar with basic Al2O3 without solvents or precious metal catalysts. The reaction works for longer 1-halopolyynes as well and direct introduction of a linear carbon chain up to (CC)4 is possible giving an easy access to azulene end-capped sp-hybridised carbon molecular wires. Finally, further reactivity of the resulting azulenes was tested and two butadiynyl derivatives were transformed into the corresponding thiophenes.
Adres publiczny
http://dx.doi.org/10.1039/d1qo01091c
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