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Ring Closure Reactions of Polychloroazaalkenes

✍ Scribed by Dr. H.-G. Schmelzer; Dr. E. Degener; Dr. H. Holtschmidt

Publisher
John Wiley and Sons
Year
1966
Tongue
English
Weight
184 KB
Volume
5
Category
Article
ISSN
0044-8249

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✦ Synopsis

IR spectra of aliphatic isocyanates that are perchlorinated in the a-position indicate that in many cases these compounds exist partly or wholly as N-(a-chloroalky1idene)carbamoyl chlorides (1) 111. With compounds of amidine structure (2) they react under the conditions of the Schotten-Baumann reaction to give almost quantitatively 2-hydroxy-s-triazines (3) 121. 2-Hydroxy-~-triazines with two different hydrocarbon radicals in the 4-and the 6-position can also be prepared in this way. C1 CI CC13 CI

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