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35901-76-9

5-Methyl-4-hexenoic acid methyl ester synthesis

10synthesis methods
1445-45-0 Synthesis
Trimethyl orthoacetate

1445-45-0
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802294-64-0 Synthesis
Propionic-2,3-14C1 acid (8CI)

802294-64-0
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5-Methyl-4-hexenoic acid methyl ester

35901-76-9
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Yield:35901-76-9 98%

Reaction Conditions:

at 125; for 12 h;

Steps:

i Example i

Synthesis of compound I-1. In the flask, add trimethyl orthoacetate (1 mol), 2-methyl-3-buten-2-ol (1 mol) and propionic acid (0.2 mol), then heat the reaction system to 125°C, and continue to stir the reaction 12h, the reaction was stopped.Washed with water, saturated NaHCO3and saturated brine successively, dried over anhydrous sodium sulfate, and distilled under reduced pressure at 30 hPa and 70 °C to obtain compound I (yield 98%).

References:

CN114315497,2022,A Location in patent:Paragraph 0048-0051