Synthesis, Table of Contents SHORTPAPER© Georg Thieme Verlag Stuttgart ˙ New YorkA Quick and Advantageous Synthesis of 2H-1-Benzopyran-2-ones Unsubstituted on the Pyranic NucleusGeorge Bratulescu*Faculty of Chemistry, University of Craiova, 13 A.I. Cuza, 200396 Craiova, Romaniae-Mail: georgebratulescu@yahoo.com; Recommend Article Abstract Buy Article All articles of this category Abstract The synthesis of 2H-1-benzopyran-2-ones (coumarins) unsubstituted on the pyranic nucleus was realized by condensation of malic acid and phenols under mild conditions. A short reaction time, improved yields, good purity of the products, and an easy clean experimental protocol are the advantages of this procedure. Key words coumarin - 2H-1-benzopyran-2-one - malic acid - phenols - condensation Full Text References References <A NAME="RZ23607SS-1">1</A> Kostova I. Curr. Med. Chem.: Anti-Cancer Agents 2005, 5: 29 <A NAME="RZ23607SS-2">2</A> Kostova I. Mini-Rev. Med. Chem. 2006, 6: 365 <A NAME="RZ23607SS-3">3</A> Garazd YL. Kornienko EM. Maloshtan LN. Garazd MM. Khilya VP. Chem. Nat. Compd. 2005, 41: 508 <A NAME="RZ23607SS-4">4</A> Lin G. Lei J. CN 1450062 2003, Chem. Abstr. 2005, 143, 286287 <A NAME="RZ23607SS-5">5</A> Kulkarni MV. Kulkarni GM. Lin C.-H. Sun C.-M. Curr. Med. Chem. 2006, 13: 2795 <A NAME="RZ23607SS-6">6</A> Raval JP. Desai KR. E-J. Chem. 2004, 1 (5): 211 <A NAME="RZ23607SS-7">7</A> Roh SG. Baek N. Hong K.-S. Oh J. Kim H. Mol. Cryst. Liq. Cryst. 2004, 425: 167 <A NAME="RZ23607SS-8">8</A> Beaudet L, Boissonneault M, and Roby P. inventors; WO 2005,003,182. ; Chem. Abstr. 2005, 142, 116015 <A NAME="RZ23607SS-9">9</A> Murata C. Masuda T. Kamochi Y. Todoroki K. Yoshida H. Nohta H. Yamaguchi M. Takadate A. Chem. Pharm. Bull. 2005, 53: 750 <A NAME="RZ23607SS-10">10</A> Huang Y. Lu Z.-Y. Peng Q. Xie R.-U. Xie M.-G. Peng J.-B. Cao Y. J. Mater. Sci. 2005, 40: 601 <A NAME="RZ23607SS-11A">11a</A> Perkin WH. J. Chem. Soc. 1868, 21: 53 <A NAME="RZ23607SS-11B">11b</A> Perkin WH. J. Chem. Soc. 1868, 21: 181 <A NAME="RZ23607SS-12">12</A> Perkin WH. J. Chem. Soc. 1877, 31: 388 <A NAME="RZ23607SS-13">13</A> von Pechmann H. Duisberg C. Ber. Dtsch. Chem. Ges. 1884, 17: 929 <A NAME="RZ23607SS-14">14</A> Jones G. Org. React. 1967, 15: 204 <A NAME="RZ23607SS-15">15</A> Brufola G. Fringuelli F. Piermatti O. Pizzo F. Heterocycles 1996, 43: 1257 <A NAME="RZ23607SS-16">16</A> Shriner RL. Org. React. 1942, 1: 1 <A NAME="RZ23607SS-17">17</A> Yavari I. Hekmat-Shoar R. Zonouzi A. Tetrahedron Lett. 1998, 39: 2391 <A NAME="RZ23607SS-18">18</A> Chattopadhyay SK. Biswas T. Neogi K. Chem. Lett. 2006, 35: 376 <A NAME="RZ23607SS-19">19</A> Bratulescu G. Rev. Roum. Chim. 2000, 45: 883 <A NAME="RZ23607SS-20">20</A> Bratulescu G. Synthesis 2005, 2833 <A NAME="RZ23607SS-21">21</A> Donald CD. Qun L. Dimitry VA. J. Org. Chem. 2005, 70: 4682