2,6-diamino-3,5-diethyltoluene synthesis
- Product Name:2,6-diamino-3,5-diethyltoluene
- CAS Number:2095-01-4
- Molecular formula:C11H18N2
- Molecular Weight:178.27
823-40-5
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2095-01-4
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Yield:-
Reaction Conditions:
with sodium hydroxide in aluminium trichloride;
Steps:
1 EXAMPLE 1
EXAMPLE 1 39 g of 20 % strength sodium hydroxide solution were added dropwise, while stirring, to the catalyst-containing crude alkylate of an ethylation of 250 g of a mixture of toluylene-2,4-diamine and toluylene-2,6-diamine in a ratio of 65:35 with 8.33 g of aluminum chloride and 4.72 g of aluminum/zinc 90:10 and ethylene to give a mixture of 6-methyl-2,4-diethylphenylene-1,3-diamine and 2-methyl-4,6-diethylphenylene-1,3-diamine at 40°-50°. Thereafter, the temperature rose to 80°-90° C. A yellowish salt precipitated. The temperature was increased slowly to 140° C. and 21.8 g of water were distilled off. The salt-containing alkylate was filtered off with suction between 90° and 120° C. The yellowish salt remained on the suction filter. Still adhering alkylate could be dissolved out by washing this salt twice with 25 ml of toluene each time. The salt obtained in this manner weighed 23.7 g when dry.
References:
US4973759,1990,A
