ChemicalBook CAS DataBase List Methyl 3-methyl-2-butenoate

Methyl 3-methyl-2-butenoate synthesis

7synthesis methods

Product Name:Methyl 3-methyl-2-butenoate
CAS Number:924-50-5
Molecular formula:C6H10O2
Molecular Weight:114.14

67-56-1 Synthesis

67-56-1
727 suppliers
$7.29/5ml-f

541-47-9
335 suppliers
$5.00/10g

924-50-5
256 suppliers
$23.00/5g

Yield:924-50-5 97.8%

Reaction Conditions:

with [1-(3-sulfonic acid)]propyl-3-methylimidazolium hydrogen sulfate for 3 h;Reflux;Green chemistry;

Steps:

1.3-1.4; 2-10
Step 3. Install a condenser tube, a thermometer,52 g of isoponic acid was added to a 100 ml four-necked flask of a stirrer and a 50 ml constant pressure dropping funnel.48g methanol and 0.1mol ionic liquid [MIMPS][HSO4-],Add 1.0g of catalyst NiW/Al-CA for 3h under heating and reflux conditions.Gas chromatography to track the progress of the reaction;Step 4. After the reaction is completed, the entire organic reaction system and the ionic liquid catalyst are clearly layered.The separated organic liquid is neutralized with a saturated sodium carbonate solution, and the aqueous layer is separated by liquid separation.The organic ester layer was washed with saturated brine and dried over anhydrous magnesium sulfate, and the unreacted alcohol was distilled off.Distillation under reduced pressure gave a colorless, transparent liquid, which was methyl isonenoate.

References:

Xuzhou Dezhu Biological Technology Co., Ltd.;Wang Meng;Wang Ming CN108558663, 2018, A Location in patent:Paragraph 0007; 0009-0017; 0028

FullText