A Facile One-Pot Synthesis of Chromen-2-one Derivatives Fused with Five Membered Heterocycles

S. Tasqeeruddin; Abdullah S. Al-Arifi; P.K. Dubey

doi:10.14233/ajchem.2013.14948

Issue

Vol. 25 No. 12 (2013): Vol 25 Issue 12

Issue Published : 17 June 2013

This work is licensed under a Creative Commons Attribution 4.0 International License.

A Facile One-Pot Synthesis of Chromen-2-one Derivatives Fused with Five Membered Heterocycles

https://doi.org/10.14233/ajchem.2013.14948

S. Tasqeeruddin

Catalytic Chemistry Chair, Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia

Abdullah S. Al-Arifi

Catalytic Chemistry Chair, Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia

P.K. Dubey

Department of Chemistry, Jawaharlal Nehru Technological University, College of Engineering, Kukatpally, Hyderabad-500 085, India

Corresponding Author(s) : S. Tasqeeruddin

tasqeeruddin@gmail.com

Asian Journal of Chemistry, Vol. 25 No. 12 (2013): Vol 25 Issue 12
Article Published : 3 September 2013

Abstract

A facile one-pot synthesis of 3-benzoxazol-2-yl-chromen-2-ones (4) by the condensation of chromen-2-one-3-carboxylates (1) with o-hydroxy aniline (3) is being reported in this paper. Alternatively 3-benzoxazol-2-yl-chromen-2-ones are prepared from chromen-2-one-3-carboxylic acids (2). The structures of all the products have been established by their spectral and analytical data.

Keywords

Chromen-2-one-3-carboxylates Chromen-2-one-3-carboxylic acid o-Hydroxy aniline Polyphosphoric acid

(1)

Tasqeeruddin, S.; S. Al-Arifi, A.; Dubey, P. A Facile One-Pot Synthesis of Chromen-2-One Derivatives Fused With Five Membered Heterocycles. ajc 2013, 25, 6987-6888.