4,4'-Methylenebis(2-methylcyclohexylamine) synthesis
- Product Name:4,4'-Methylenebis(2-methylcyclohexylamine)
- CAS Number:6864-37-5
- Molecular formula:C15H30N2
- Molecular Weight:238.41
838-88-0
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6864-37-5
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Yield:6864-37-5 99.4%
Reaction Conditions:
with ruthenium on aluminium oxide;ammonium aluminium sulfate;hydrogen in tetrahydrofuran at 160; under 60006 Torr; for 4 h;Acidic conditions;Large scale;
Steps:
10 Preparation of MACM from formula (IIb)
2000 kg of 3,3'-dimethyl-4,4'-diaminodiphenylmethane and 2000 kg of tetrahydrofuran were added to an autoclave having a volume of 6000 L, and then 100 kg of a 5% Ru/Al 2 O 3 catalyst and 100 kg of ammonium aluminum sulfate were added.After sealing, replace the air in the autoclave with hydrogen.Then, 6 MPa of hydrogen was introduced, and the autoclave was heated to 160 ° C. The hydrogen valve was adjusted to maintain the pressure in the autoclave at 8 MPa and the reaction was vigorously stirred for 4 hours.After cooling, sample and measure by gas chromatography-mass spectrometry.The detection result was that the conversion ratio of 3,3'-dimethyl-4,4'-diaminodiphenylmethane was 100%, and the MACM yield was 99.4%.
References:
CN108191671,2018,A Location in patent:Paragraph 0060-0062; 0072-0074
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6864-37-5
200 suppliers
$24.00/25mL