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A new and simple ‘LEGO’ system for the synthesis of branched oligopyridines

✍ Scribed by Gunther R. Pabst; Konrad Schmid; Jürgen Sauer

Publisher
Elsevier Science
Year
1998
Tongue
French
Weight
177 KB
Volume
39
Category
Article
ISSN
0040-4039

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✦ Synopsis

nxlttut fur ()rgam,~'c he ('berate der l 'mvermtat Re,eenshur~, 1)-93040 Re,eertshur~,, f iermanv

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The new and simple ‘LEGO’ system: Its ap
The new and simple ‘LEGO’ system: Its application to the synthesis of superbranched oligopyridines
✍ Gunther R. Pabst; Ju¨rgen Sauer 📂 Article 📅 1998 🏛 Elsevier Science 🌐 French ⚖ 192 KB

The condensation of pyridine-2,4,6-tricarboxtrisamidrazone 1 with 1,2-dicarbonyl compounds 2 -3 leads to trisubstituted 1,2,4-triazines 4 -6. These 1,2,4-triazines can be easily transformed to superbranched pyridines 7 -9 by [4+2] cycloaddition with norborna-2,5-diene followed by [4+2] cycloreversio