Squaric acid is a suitable building-block in 4C-Ugi reaction: access to original bivalent compounds
摘要:
The 4C-Ugi reaction requires an acidic component as one of the building-blocks. We report here the first use of squaric acid for this reaction to access original symmetrical compounds. The scope and conditions of the reaction were explored. (C) 2011 Elsevier Ltd. All rights reserved.
The 4C-Ugi reaction requires an acidic component as one of the building-blocks. We report here the first use of squaric acid for this reaction to access original symmetrical compounds. The scope and conditions of the reaction were explored. (C) 2011 Elsevier Ltd. All rights reserved.