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α-Iminoalkyl Isocyanates

✍ Scribed by L. I. Samaraj; V. A. Bondar; Prof. G. I. Derkatsch


Publisher
John Wiley and Sons
Year
1967
Tongue
English
Weight
102 KB
Volume
6
Category
Article
ISSN
0044-8249

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✦ Synopsis


We recently ascertaincd that amidines (1) resct very readily with oxalyl dichloride to give imidazoline-4,5-dione hydrochlorides (2) [ 1 ~2 1 .


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We hereby report the first preparation of 3-nitro-4-pyridyl isocyanate 9 and 5-nitro-2-pyridyl isocyanate 18. They were formed by Curtius rearrangement of the corresponding acyl azides 8 and 17, prepared from methyl 3-nitro-4-pyridinecarboxylate 6 via the hydrazide 7 and 5-nitro-picolinic acid 16, r