9,10-dihydro-9,9,10,10-tetraMethyl-Anthracene synthesis
- Product Name:9,10-dihydro-9,9,10,10-tetraMethyl-Anthracene
- CAS Number:24269-10-1
- Molecular formula:C18H20
- Molecular Weight:236.35
Yield:24269-10-1 70%
Reaction Conditions:
with lithium aluminium tetrahydride for 6 h;Inert atmosphere;Reflux;
Steps:
1 The Synthesis of 9,9,10,10-tetramethyl-9,10-dihydro-anthracene
10 mmol of anthracene was charged in a reaction vessel, 10 mL of bis(2-methoxyethyl)ether and 26 mmol of LAH were then added to the vessel, and the mixture was heated to reflux under nitrogen for 6 hours. The reaction was then cooled to room temperature, added 4N HCl solution in ice bath to quench reaction, and then filtered to get white solid (9,9,10,10-tetramethyl-9,10-dihydro-anthracene) with 70% yield. The reaction was shown in Formula 5, and the product had spectra as below. 1H NMR (400 MHz, CDCl3, ppm): δ7.50-7.52 (m, 4H), 7.23-7.25 (m, 4H), 1.66 (s, 12H).
References:
US7671241,2010,B2 Location in patent:Page/Page column 5
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