Synthesis 2011(5): 745-748  
DOI: 10.1055/s-0030-1258423
PAPER
© Georg Thieme Verlag Stuttgart ˙ New York

Solvent-Free Synthesis of 1-(Hydroxyquinolyl)- and 1-(Hydroxyisoquinolyl)-1,2,3,4-tetrahydroisoquinolines by Modified Mannich Reaction

István Szatmári, Ferenc Fülöp*
Institute of Pharmaceutical Chemistry and Research Group for Stereochemistry, Hungarian Academy of Sciences, University of Szeged, Eötvös u. 6, 6720 Szeged, Hungary
Fax: +36(62)545705; e-Mail: fulop@pharm.u-szeged.hu;
Further Information

Publication History

Received 23 December 2010
Publication Date:
03 February 2011 (online)

Abstract

The solvent-free synthesis of 1-(hydroxyquinolyl)- and 1-(hydroxyisoquinolyl)-1,2,3,4-tetrahydroisoquinoline derivatives is reported. The tested reaction conditions involved classical heating at 80-100 ˚C and microwave agitation at the same temperature. Both reaction conditions yielded the compounds in good yield (57-92%), but the use of microwave conditions allowed the reaction time to be decreased.