4,4'-Diaminodicyclohexyl methane synthesis
- Product Name: 4,4'-Diaminodicyclohexyl methane
- CAS Number:1761-71-3
- Molecular formula:C13H26N2
- Molecular Weight:210.36
101-77-9
347 suppliers
$15.00/25g
1761-71-3
232 suppliers
$6.00/25g
Yield:1761-71-3 99.6%
Reaction Conditions:
with potassium aluminum sulfate;ruthenium on aluminium oxide;hydrogen in tetrahydrofuran at 140; under 60006 Torr; for 4 h;Autoclave;Large scale;Temperature;
Steps:
6 Preparation of PACM from formula (IIa)
In a 200 L autoclave, 15 kg of MDA and 60 kg of tetrahydrofuran were added, followed by 450 g of a 5% Ru/Al 2 O 3 catalyst and 450 g of potassium aluminum sulfate.After sealing, replace the air in the autoclave with hydrogen.Then pass 8MPa hydrogen,The autoclave was heated to 140 ° C, and the hydrogen valve was adjusted to maintain the pressure in the autoclave at 10 MPa and the reaction was vigorously stirred for 4 hours.After cooling, the sample was taken and detected by gas chromatography-mass spectrometry. The detection result was 100% conversion of MDA.The PACM yield is 99.6%. The byproducts 4-amino-dicyclohexylmethane and dicyclohexylmethane were not detected.
References:
Source Jinghua Environmental Protection Technology Co., Ltd.;Zhao Zhiquan;Fan Lifen CN108191671, 2018, A Location in patent:Paragraph 0033-0059; 0066-0071
101-77-9
347 suppliers
$15.00/25g
1761-71-3
232 suppliers
$6.00/25g
6321-23-9
113 suppliers
$19.80/1g