Triethylamine → 3-Ethyl 5-methyl 6-(difluoromethyl)-4-(2-methylaziridinyl)-2-(trifluoromethyl)-3,5-pyridinedicarboxylate

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Reaction Steps

A mixture of 2.5 g (0.0059 mol) of product of Example 81, 0.6 g (0.0059 mol) of triethylamine and 0.25 g of 5% Pd/C (50% water coated) in 100 ml of ethanol was hydrogenated (446 kPa) for 18 hours at 50° C. The mixture was then filtered through celite and concentrated in vacuo to remove the ethyl alcohol. The residue was poured into water, and extracted with diethyl ether. The ether extract was washed with water, then dried over MgSO4. The dry ether phase was then concentrated in vacuo to yield 2.00 g of a yellow solid. This solid was then recrystallized in hexane to yield 1.28 g (56%) of product as a tan solid; mp 61° C.

Provenance & Evidence