Citric Acid → HCID 14403135, compound

Participants

Reaction Conditions

Reaction Steps

1 g 3-cyclopropylmethyl-9,9-dimethyl-3,7-diazabicyclo[3,3,1]nonane was dissolved in 25 ml absolute tetrahydrofuran, and 0.2 g lithium amide was added to the solution and stirred for 1 hour at 60° C. and then left to cool. After cooling, a solution of 3 g diphenylmethyl bromide in 25 ml absolute tetrahydrofuran was added slowly in drops, and the reaction mixture was stirred further for 90 min at a temperature of 40° C. Then the reaction mixture was acidified with aqueous citric acid solution and worked up as described in Example 1. 1.5 g 7-diphenylmethyl-3-cyclopropylmethyl-9,9-dimethyl-3,7-diazabicyclo[3,3,1]nonane were obtained as an oleaginous base.

Provenance & Evidence