Abstract
A facile and effective synthesis for a wide variety of 4-arylidene-5- imidazolinone derivatives was developed. 4-Arylidene-5-oxazolinones were prepared by Erlenmeyer azlactone synthesis from N-acylglycines and arylaldehydes. The ring-opening reactions of the 4-arylidene-5-oxazolinones with primary amines afforded 2-acylamino-3-arylacrylamides in excellent yields. A new dehydrative cyclization of the 2-acylamino-3-arylacrylamides in pyridine under reflux furnished the corresponding 4-arylidene-5-imidazolinones in good yields.
Original language | English |
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Pages (from-to) | 5898-5907 |
Number of pages | 10 |
Journal | Tetrahedron |
Volume | 68 |
Issue number | 29 |
DOIs | |
Publication status | Published - 2012 Jul 22 |
Keywords
- Acrylamide
- Fluorescent protein chromophore
- GFP
- Imidazolinone
- Oxazolinone
ASJC Scopus subject areas
- Biochemistry
- Drug Discovery
- Organic Chemistry