Synthesis of new iminocoumarins and their transformations into N-chloro and hydrazono compounds
作者:Julija Volmajer、Renata Toplak、Ivan Leban、Alenka Majcen Le Marechal
DOI:10.1016/j.tet.2005.05.020
日期:2005.7
The Knoevenagel reaction between 2-hydroxybenzaldehydes and active methylene compounds (malononitrile and ethyl cyanoacetate) produces iminocoumarins and/or coumarins. In order to study the reactivity of the prepared iminocoumarins, chlorination and reaction with N-nucleophiles were studied. (c) 2005 Elsevier Ltd. All rights reserved.
Novel N-chlorinated derivatives of 2H-1-benzopyran-2-imines
作者:Julija Volmajer、Renata Toplak、Shmuel Bittner、Ivan Leban、Alenka Majcen Le Marechal
DOI:10.1016/s0040-4039(03)00249-1
日期:2003.3
A series of new N-chlorobenzopyran-2-imines were prepared in moderate to good yields, by reacting sodium hypochlorite in an acidic medium with benzopyran-2-imines obtained via the Knoevenagel condensation. Some of the N-chlorobenzopyran-2-imines obtained are potential antiproliferating agents. (C) 2003 Elsevier Science Ltd. All rights reserved.