3-Furanpropanoyl chloride, 2,5-dihydro-4-methyl-2,5-dioxo- synthesis
- Product Name:3-Furanpropanoyl chloride, 2,5-dihydro-4-methyl-2,5-dioxo-
- CAS Number:160239-81-6
- Molecular formula:C8H7ClO4
- Molecular Weight:202.59
487-66-1
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Yield:160239-81-6 97%
Reaction Conditions:
with oxalyl dichloride;N,N-dimethyl-formamide in dichloromethane at 25; for 1 h;
Steps:
1
CDM (1.840 g, 0.010 mol) was completely dissolved in anhydrous dichloromethane (20 mE) at 0° C., N,N-dimethylformamide (50 jt) and oxalyl dichloride (3.8 10 g, 0.030 mol) were successively added. After kept for 10 mm, reaction was continued at 25° C. for 1 h. Dichloromethane was removed with a rotary evaporator, and N,N-dimethylformamide was removed by distillation under 15.0 Pa to obtain an intermediate, acyl-chlorinated CDM (1.96 g, with a yield of 97%).
References:
US2019/60463,2019,A1 Location in patent:Paragraph 0170
13192-04-6
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766-39-2
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98453-81-7
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![Propanedioic acid, 2-[(2,5-dihydro-4-methyl-2,5-dioxo-3-furanyl)methyl]-, 1,3-diethyl ester](/CAS/20210305/GIF/347406-12-6.gif)
347406-12-6
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