The redeeming features of reaction of the 8-formyl-7-hydroxychromones with malononitrile-Reference-Cited by-同舟云学术

The redeeming features of reaction of the 8-formyl-7-hydroxychromones with malononitrile

Published:2014 Issue:1 Volume:2 Page:10-15
ISSN:2312-3222
Container-title:French-Ukrainian Journal of Chemistry
language:
Short-container-title:Fr. Ukr. J. Chem.

Author:

Lozinski Oleg¹,Shokol Tatyana¹,Shishkin Oleg²,Medvediev Vladimir³,Khilya Vladimir¹

Affiliation:

1. Department of Chemistry, Taras Shevchenko National University of Kyiv

2. Department of Chemistry, V. N. Karazin Kharkiv National University

3. Division of Functional Materials Chemistry, SSI Institute for Single Crystals of National Academy of Science of Ukraine

Abstract

A range of 4H,8H-pyrano[2,3-f]chromen-4,8-diones have been prepared using Knoevenagel reaction of the 8-formyl-7-hydroxychromones with malononitrile. The 4H,8H-pyrano[2,3-f]chromen-4,8-dione derivative was also obtained through the acid hydrolysis of the 8-imino-4H,8H-pyrano[2,3-f]chromen-4-one. 8-Formyl-7-hydroxychromone 1 was found to add two molecules of malononitrile through Michael addition resulting in formation of the 2-[8-amino-3-(4-chlorophenyl)-9-cyano-2-methyl-4-oxo-4H,10H-pyrano[2,3-f]chromen-10-yl]malononitrile.

Publisher

Taras Shevchenko National University of Kyiv

Reference18 articles.

1. Joshi B, Kamat V. Structures of clausenin, clausenidin and a synthesis of clausenin and xanthoxyletin. Tetrahedron Letters 1966;7(46):5767-5773. https://doi.org/10.1016/s0040-4039(01)84193-9

2. Joshi B, Kamat V, Saksena A. Structures of clausenin and clausenidin two new pyranocoumarins from the roots of clausena heptaphylla Wt. & Arn.. Tetrahedron 1967;23(12):4785-4789. https://doi.org/10.1016/s0040-4020(01)92576-1

3. Iinuma M, Asai F, Tanaka T, Mizuno M. Two Complex Flavonoids in the Farinose Exudate of Pityrogramma calomelanos. HETEROCYCLES 1992;33(1):229. https://doi.org/10.3987/com-91-s21

4. Iinuma M, Tanaka T, Asai F. Flavonoids in frond exudates of Pityrogramma tartarea. Phytochemistry 1994;36(4):941-943. https://doi.org/10.1016/s0031-9422(00)90467-9

5. Thakar KA, Manjaramkar NR. Phytochemistry Indian J. Chem. 1971;9:892.

Cited by 1 articles. 订阅此论文施引文献订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献

1. The synthesis of angular heteroarenochromones based on 7-hydroxy-8-carbonylchromones;French-Ukrainian Journal of Chemistry;2017