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1-(2,4-Dichlorophenyl)-3-pivaloylthiourea

✍ Scribed by Saeed, Aamer ;Flörke, Ulrich

Publisher: International Union of Crystallography
Year: 2007
Tongue: English
Weight: 511 KB
Volume: 63
Category: Article
ISSN: 1600-5368
DOI: 10.1107/s1600536807055808

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✦ Synopsis

Experimental

A freshly distilled solution of pivaloyl chloride (1.20 g, 10 mmol) in acetone (50 ml) was added dropwise to a suspension of potassium thiocyanate (0.97 g, 10 mmol) in acetone (30 ml) and the reaction mixture was refluxed for 30 min. After cooling to room temperature, a solution of 2,4-dichloroaniline (10 mmol) in acetone (10 ml) was added and the resulting mixture refluxed for 2.0 h. The reaction mixture was poured into cold water when the thiourea was precipitated as a solid.

Recrystallized from aqueous ethanol as colourless crystals (2.47 g, 81.0 mmol, 81%). IR (KBr) cm -1 : 3351 (free NH),

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