ChemicalBook CAS DataBase List ALLYLUREA

ALLYLUREA synthesis

7synthesis methods

Product Name:ALLYLUREA
CAS Number:557-11-9
Molecular formula:C4H8N2O
Molecular Weight:100.12

107-18-6
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$24.60/100ml

57-13-6 Synthesis

57-13-6
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$5.00/5g

557-11-9
87 suppliers
$37.10/25g

Yield: 279 g

Reaction Conditions:

with aluminum oxide;potassium bromide at 90; for 2.16667 h;Temperature;

Steps:

3
5 mol of urea and 3 mol of allyl alcohol were added to the reaction vessel.The 12L mass fraction is 45% potassium bromide solution, 1.5 mol of alumina powder, the stirring speed is controlled at 110 rpm, and the solution temperature is raised to 90 ° C.Maintain 130min, 30kPa vacuum distillation, reduce the solution temperature to 15 ° C, precipitate crystals, wash with a mass fraction of 65% ether solution, mass fraction of 75% dimethylamine solution, recrystallize in 80% methanol solution The anhydrous magnesium sulfate dehydrating agent was dehydrated to obtain 279 g of the finished (prop-2-en-1-yl)urea.

References:

Chengdu Zhong Heng Huatie Technology Co., Ltd.;Peng Xiangliang CN108395386, 2018, A Location in patent:Paragraph 0006; 0010-0015