ChemicalBook CAS DataBase List 1-ETHYL-3-PHENYL-2-THIOUREA

1-ETHYL-3-PHENYL-2-THIOUREA synthesis

7synthesis methods

Product Name:1-ETHYL-3-PHENYL-2-THIOUREA
CAS Number:3955-58-6
Molecular formula:C9H12N2S
Molecular Weight:180.27

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Yield:3955-58-6 94%

Reaction Conditions:

with hydrogenchloride in water;

Steps:

Preparation of N-Ethyl-N-phenylthiourea

N-Ethylamine (9.7 g, 80 mmol) was dissolved in 8.0 ml of concentrated hydrochloric acid; the reaction mixture was concentrated by evaporation in a steam bath. The resulting solution was treated with an excess of potassium thiocyanate(11.7 g, 120 mmol) solution and evaporated to dryness. The inorganic portion ofthe residue was removed with a small amount of water, and the remaining thiourea was recrystallized from ethanol. This gave yellow crystals of N-ethyl-N-phenylthiourea, 94% yield.

References:

Chen, Junmin;Zhou, Xiaomeng;Yuan, Tangjun [Synthetic Communications,2014,vol. 44,# 24,p. 3630 - 3636]

103-69-5
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$13.00/100g