Ammonia → HCID 19099824, compound

Participants

Reaction Conditions

Reaction Steps

In a 1400 ml Hastelloy-C Shaker tube was charged the 2,2-bis(trifluoromethyl)-4,5-di(2-cyanoethyl)-4,5-difluoro-1,3-dioxolane of Example 43 (56.3 g, 0.16 mole), tetrahydrofuran (320 ml) and Raney-Cobalt catalyst (14.4 g). The tube was sealed and cool-evacuated. Ammonia (64 g, 3.765 mole) was transferred into the tube and the tube was pressurized with hydrogen gas to 500 psi. The tube was then heated to 110° C. and the hydrogen pressure was adjusted to 1500 psi. The heating was continued for 18 hrs at this temperature. After the tube was cooled, the product mixture was filtered to remove the catalyst, and solvent was removed in vacuo. The residue was distilled to give the desired product 46 g (80% yield) as a clear, colorless, viscous liquid, Bp. 80° C./0.06 mmHg. H-1 NMR (CDCl3): 3.02 (m, 4H), 2.30 (m, 4H), 1.97 (m, 4H), 1.50 (s, br, --NH2); F-19 NMR (CDCl3): -80.5 (m, 6F), [-108.8 (m, br, trans), -110.6 (m, br cis) (2F total)].

Provenance & Evidence