Synlett 2014; 25(11): 1596-1600
DOI: 10.1055/s-0033-1341202
letter
© Georg Thieme Verlag Stuttgart · New York

An Efficient Approach to the Synthesis of Coumarin-Bearing 2,3-Dihydro-4(1H)-Quinazolinone Derivatives Using a Piperidine and Molecular Iodine Dual-Catalyst System

Abdolali Alizadeh*
a   Department of Chemistry, Tarbiat Modares University, P.O. Box 14115-175, Tehran, Iran   Fax: +98(21)88006544   eMail: abdol_alizad@yahoo.com   eMail: aalizadeh@modares.ac.ir
,
Rashid Ghanbaripour
a   Department of Chemistry, Tarbiat Modares University, P.O. Box 14115-175, Tehran, Iran   Fax: +98(21)88006544   eMail: abdol_alizad@yahoo.com   eMail: aalizadeh@modares.ac.ir
,
Long-Guan Zhu
b   Department of Chemistry, Zhejiang University, Hangzhou 310027, P. R. of China
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Publikationsverlauf

Received: 01. März 2014

Accepted: 22. März 2014

Publikationsdatum:
10. April 2014 (online)


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Abstract

An efficient dual-catalyst system of piperidine and molecular iodine has been developed for the synthesis of 2-alkyl-2-(2-oxo-2H-chromen-3-yl)-2,3-dihydro-4(1H)quinazolinone derivatives by a four-component reaction of salicylaldehydes, β-keto esters, ammonium acetate, and isatoic anhydride. Good yields, mild reaction conditions, and easy purification are attractive features of the present method.

Supporting Information