5-Nitro-2-(1-chloro-2,2,2-trifluoroethyl)-2-trifluoromethyl-1,3-benzodioxol → HCID 54242850, compound

HRID 343835Notes

Reaction equation

HRID 343835 reaction equation
[N+:1]([C:4]1[CH:22]=[CH:21][C:7]2[O:8][C:9]([CH:15]([Cl:20])[C:16]([F:19])([F:18])[F:17])([C:11]([F:14])([F:13])[F:12])[O:10][C:6]=2[CH:5]=1)([O-])=O.[H][H]>O1CCCC1.[Pd]>[NH2:1][C:4]1[CH:22]=[CH:21][C:7]2[O:8][C:9]([CH:15]([Cl:20])[C:16]([F:19])([F:17])[F:18])([C:11]([F:12])([F:13])[F:14])[O:10][C:6]=2[CH:5]=1

Participants

5

Reactant 2

HCID 545213925-Nitro-2-(1-chloro-2,2,2-trifluoroethyl)-2-trifluoromethyl-1,3-benzodioxolHCID 178418361HCID 178418361, compound

Product 1

HCID 54242850HCID 54242850, compound

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 8028TetrahydrofuranSolvent

Procedure

72 g of 5-nitro-2-(1-chloro-2,2,2-trifluoroethyl)-2-trifluoromethyl-1,3-benzodioxole of Example 16a were dissolved in 500 ml of tetrahydrofuran and hydrogenated for 5 hours at room temperature with 15 to 20 bar hydrogen using 5 g of palladium on charcoal (5% strength). The mixture was subsequently filtered and the solvent was stripped off in vacuo. The yield was 60 g (93% of theory), and the boiling point was 80° to 82° C. at 0.1 mbar. The NMR spectra showed the following characteristic absorptions: 19F-NMR: -66.5 and -79.4 ppm. 1H-NMR: 4.68 ppm.

Workup

  1. filtrationThe mixture was subsequently filtered

Sources & evidence

ORD record
ord-7c1d84a5f6a248ab9c31b1ce059dc7a1
Source dataset
uspto-grants-1999_01
Patent number
US05863933

Reaction notes

Loading…