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New Reactions with Cyanic Esters

✍ Scribed by Dr. Ernst Grigat


Publisher
John Wiley and Sons
Year
1972
Tongue
English
Weight
913 KB
Volume
11
Category
Article
ISSN
0044-8249

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πŸ“œ SIMILAR VOLUMES


Addition Reactions of Cyanic Esters
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interactions, since the distances between the Se and N atoms in neighboring molecules is shorter by 0.2 A on the average than the sum of the corresponding van der Waals radii.

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## Abstract Sodium cyanide in hexamethylphosphoric triamide selectively cleaves methyl esters in the presence of ethyl esters with yields of __ca.__ 80%. The mechanism of the reaction has been investigated. It consists of nucleophilic displacement by cyanide of the carboxylate ion from the alcohol

New heterocycles with cycloamidine subst
✍ Thomas Billot; Rainer Beckert; Manfred DΓΆring; JΓΆrg Wuckelt; Peer Fehling; Helma πŸ“‚ Article πŸ“… 2001 πŸ› Journal of Heterocyclic Chemistry 🌐 English βš– 101 KB

## Abstract The synthesis of pyrido[2,1‐__c__]‐1,2,4‐triazines **6**, pyrido[1,2‐__b__]‐1,2,4‐triazines **7** and pyrido[1,2‐__b__]pyri‐dazines **8** respectively by cycloacylation of derivatives of pyridine with imidoylchlorides of type **2** is described. The heterocycles of type **6** as well as