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A New Synthesis of Aliphatic Isothiocyanates

✍ Scribed by Dr. J. C. Jochims; Frau A. Seeliger

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

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✦ Synopsis

Method 1): (3a) is heated in 80 % H z S 0 4 at 150 OC for 112 h.

On cooling and dilution, ( l a ) is precipitated; it was recrystallized from H20.

Method 2): 1 g of (4a) and 2 ml of 52 % hydrazine are dissolved in alcohol; (la) is precipitated after ca. 12 h. (4a) is dissolved in hot alcohol and treated with an excess of aqueous hydrazine hydrochloride; (Sa) separates and can be recrystallized from ethanol. (6a) can be prepared in the same way as (4a), but from (4.) and hydrazine in ethanol; it was recrystallized from glacial acetic acid.

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