1,1,4,6-Tetramethyl-5,7-dinitro-2,3-dihydro-1H-indene → 3,3,5,7-Tetramethyl-2,3-dihydro-1H-indene-4,6-diamine

Participants

Reaction Steps

One hundred seventy-five grams (0.662 mol) of the 5,7-dinitro-1,1,4,6-tetramethylindane thus obtained were dissolved in 500 g of methanol, and after addition of 17.5 g of 5% Pd/C (water content: 50%) to the resultant solution, the mixture was stirred at 50-60° C. for 84 hours in a hydrogen gas atmosphere. After completion of the reaction, the reaction mixture was filtered and the filtrate was concentrated under reduced pressure. The thus-obtained residue was distilled under reduced pressure to obtain 5,7-diamino-1,1,4,6-tetramethylindane as pale yellow crystals.

Provenance & Evidence