Abstract
Method for the synthesis of m-and p-isomers of 4-[2-(ethynylphenyl)vinyl]- 2,2,5,5-tetramethyl-3-imidazoline-1-oxyl 3-oxides by the cross-coupling of 4-[2-(3-iodophenyl)vinyl]-and 4-[2-(4-iodophenyl)vinyl]-2,2,5,5-tetramethyl-3- imidazoline-1-oxyl 3-oxides with (trimethylsilyl)acetylene followed by desilylation was elaborated. The reactions at the CH-fragment of the ethynyl group were performed. The Mannich reaction proceeds with the loss of a spin label, whereas the oxidative homocoupling, with its retention.
Original language | English |
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Pages (from-to) | 2123-2126 |
Number of pages | 4 |
Journal | Russian Chemical Bulletin |
Volume | 56 |
Issue number | 10 |
DOIs | |
Publication status | Published - 1 Oct 2007 |
Externally published | Yes |
Keywords
- 3-imidazolinenitroxides
- Alkynes
- Nitroxyl radicals
- The Sonogashira reaction
ASJC Scopus subject areas
- Chemistry(all)