Formal [3+3] cycloaddition reaction of 4-hydroxythiocoumarin to 4Н-chromene-3-carbaldehydes: synthesis of thiochromeno[3',4':5,6]pyrano[2,3-b]chromen-6-ones

Formal [3+3] cycloaddition reaction of 4-hydroxythiocoumarin to 4Н-chromene-3-carbaldehydes: synthesis of thiochromeno[3',4':5,6]pyrano[2,3-b]chromen-6-ones

A cascade reaction of 4-hydroxythiocoumarin and 4Н-chromene-3-carbaldehydes was developed, consisting of Knoevenagel condensation and oxa-6π electrocyclization in the presence of ammonium acetate as catalyst. A series of polycyclic acetals containing a fused thiocoumarin moiety were obtained

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Bibliografiset tiedot
Päätekijät:	Demidov, O. P., Демидов, О. П.
Aineistotyyppi:	Статья
Kieli:	English
Julkaistu:	Springer 2020
Aiheet:	1H-benzo[f]chromene-2-carbaldehydes 4-hydroxythiocoumarin 4Н-chromene-3-carbaldehydes Electrocyclization Formal [3+3] cycloaddition Knoevenagel condensation
Linkit:	https://dspace.ncfu.ru/handle/20.500.12258/14619
Tagit:	Lisää tagi Ei tageja, Lisää ensimmäinen tagi!

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