A new strategy for synthesis of 9-benzoyl-4-methylpyrano[2,3-f]chromene-2,8-dione using L-proline as a novel and efficient catalyst
- Авторлар: Goud E.1, Rao Y.1, Hemasri Y.2, Thirupathi G.1
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Мекемелер:
- Department of Chemistry
- Department of Chemistry, Nizam College
- Шығарылым: Том 86, № 12 (2016)
- Беттер: 2732-2736
- Бөлім: Article
- URL: https://journals.rcsi.science/1070-3632/article/view/216849
- DOI: https://doi.org/10.1134/S1070363216120331
- ID: 216849
Дәйексөз келтіру
Аннотация
We report the high yield synthesis of novel 9-benzoyl-4-methylpyrano[2,3-f]chromene-2,8-dione derivatives obtained by the reaction of 8-formyl-7-hydroxy-4-methylcoumarin with various active methylene compounds. A mechanism of the tandem Knoevenagel condensation and cyclisation reaction is proposed. Structures of all compounds were elucidated on the basis of 1H and 13C NMR, and mass spectrometry, and elemental analysis.
Негізгі сөздер
Авторлар туралы
E. Goud
Department of Chemistry
Email: erukalayadaiahgoud@gmail.com
Үндістан, Hyderabad, Telangana, 500007
Y. Rao
Department of Chemistry; Department of Chemistry
Хат алмасуға жауапты Автор.
Email: erukalayadaiahgoud@gmail.com
Үндістан, Hyderabad, Telangana, 500007; Nizamabad, 503322
Y. Hemasri
Department of Chemistry, Nizam College
Email: erukalayadaiahgoud@gmail.com
Үндістан, Hyderabad, 500001
G. Thirupathi
Department of Chemistry
Email: erukalayadaiahgoud@gmail.com
Үндістан, Hyderabad, Telangana, 500007