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diethyl 1,2-cyclopentanedicarboxylate synthesis
- Product Name:diethyl 1,2-cyclopentanedicarboxylate
- CAS Number:90474-13-8
- Molecular formula:C11H18O4
- Molecular Weight:214.26
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Yield:90474-13-8 82.4 %
Reaction Conditions:
with hydrogen in 1,4-dioxane at 120 - 180; under 7500.75 - 23252.3 Torr;
Steps:
4.4 Step 4: Preparation of compound VI (diethyl 1,2-cyclopentadicarboxylate)
Put 50g of compound V prepared in step 3 obtained by distillation and purification and 100mL of solvent 1,4-dioxane into a hydrogenation reactor, and then add 1g of Raney nickel and 5g of H-ZSM-5 as hydrogenation catalysts, In the presence of hydrogen, react at 120°C and 1MPa, continue to heat up to 180°C after no hydrogen absorption, and react at 3.1MPa for 10h. After separation, 18g of pure compound VI (82.4% molar yield) is obtained
References:
CN115232058,2022,A Location in patent:Paragraph 0147; 0157-0159
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