Synthesis of photochromic 2,3-bis(2,5-dimethyl-3-thienyl)-3-cyanoacrylates by the Beckmann rearrangement of a cyclobutenedione derivative

Synthesis of photochromic 2,3-bis(2,5-dimethyl-3-thienyl)-3-cyanoacrylates by the Beckmann rearrangement of a cyclobutenedione derivative

An unusual Beckmann rearrangement was discovered in the reaction of 3,4-bis(2,5-dimethyl-3-thienyl)cyclobut-3-ene-1,2-dione with hydroxylamine hydrochloride to give esters of 2,3-bis(2,5-dimethyl-3-thienyl)-3- cyanoacrylic acid.

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Veröffentlicht in:Mendeleev communications 2004, Vol.14 (5), p.202-204
Hauptverfasser: Shirinian, Valerii Z., Krayushkin, Mikhail M., Barachevskii, Valerii A., Belen’kii, Leonid I., Shimkin, Aleksei A., Strokach, Yuri P.
Format: Artikel
Sprache:eng
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Zusammenfassung:An unusual Beckmann rearrangement was discovered in the reaction of 3,4-bis(2,5-dimethyl-3-thienyl)cyclobut-3-ene-1,2-dione with hydroxylamine hydrochloride to give esters of 2,3-bis(2,5-dimethyl-3-thienyl)-3- cyanoacrylic acid.
ISSN:0959-9436
DOI:10.1070/MC2004v014n05ABEH001916