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

E. Y. Goud; Y. J. Rao; Y. Hemasri; G. Thirupathi

doi:10.1134/S1070363216120331

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.Y.¹, Rao Y.J.¹, Hemasri Y.², Thirupathi G.¹
Мекемелер:
1. Department of Chemistry
2. 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

Толық мәтін

Ашық рұқсат
Рұқсат жабық

Рұқсат берілді
Рұқсат жабық

Тек жазылушылар үшін

Аннотация
Авторлар туралы
Әдебиет тізімі
Қосымша файлдар
Статистика

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.