Cyclopentene synthesis
- Product Name:Cyclopentene
- CAS Number:142-29-0
- Molecular formula:C5H8
- Molecular Weight:68.12
1003-03-8
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142-29-0
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$11.00/25mL
Yield:142-29-0 92%
Reaction Conditions:
with nickel(II) oxide;1-methyl-2-nitrobenzene;oxalic acid at 280 - 310; for 3.16667 h;Temperature;
Steps:
1 Synthesis of Cyclopentene as Intermediate
In the tubular type reaction vessel by adding nickel oxide 1.56mol, cyclopentamine (2) 1.3mol, the mass fraction is 65%1-nitro toluene solution (3) 1.9mol, the mass fraction is 35% oxalic acid 300 ml, increasing the reaction temperature to 280 °C, reaction 120 min, then raise the temperature to 310 °C, to continue reaction 70 min, after the thermal cracking reaction, reduce the reactor temperature to 25 °C, steam condensing, separating an aqueous layer, using ammonium bromide solution to wash oil, the mass fraction of 75% xylene washing, dehydration of phosphorus pentoxide, in the mass fraction is 95% recrystallization acetamide, to obtain crystal cyclopentene 81.33g, yield 92%.
References:
Chengdu qianyu Longhua Petroleum Engineering Consulting Co. Ltd.;Guan, Genan CN105503494, 2016, A Location in patent:Paragraph 0015-0016
96-41-3
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142-29-0
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542-92-7
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142-29-0
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109-66-0
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287-92-3
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142-29-0
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5057-98-7
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142-29-0
261 suppliers
$11.00/25mL