ChemicalBook CAS DataBase List 1,1-DIMETHYLUREA

1,1-DIMETHYLUREA synthesis

11synthesis methods

Product Name:1,1-DIMETHYLUREA
CAS Number:598-94-7
Molecular formula:C3H8N2O
Molecular Weight:88.11

917-61-3 Synthesis

917-61-3
290 suppliers
$14.30/5g

124-40-3
496 suppliers
$18.00/100ml

598-94-7
171 suppliers
$21.00/5g

Yield:-

Reaction Conditions:

in waterHeating;

Steps:

1
In the with mechanical stirrer, a thermometer and a reflux condenser of the three neck round bottom flask is added 390 g (6 µM) of sodium sulfocyanate and 150 ml of purified water to stir at the same time heating, then adding 676 g (6 µM, 753 ml) 40% dimethylamine aqueous solution mixed, constant temperature continuously stirring 2 - 3 hours after the termination of the reaction such as, concentrated under reduced pressure, cooling crystallization, centrifugal separation, water recrystallization and vacuum dried to obtain 325 g of 1, 1 - [...] white crystalline powder, melting point 175 - 180 °C, content of 95.3%.

References:

Dongli (Nantong) Chemical Co., Ltd.;Ayibieke . Malike;A Yibieke·malike;Yi Weinan;Zhou Jian CN109956891, 2019, A Location in patent:Paragraph 0008-0013

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590-28-3 Synthesis