Hydrochloric Acid → Phosphonic acid, [2-nitro-5-[2-nitro-4-(trifluoromethyl)phenoxy]phenyl]-

HRID 2059140Notes

Reaction equation

HRID 2059140 reaction equation
C([O:3][P:4]([C:9]1[CH:14]=[C:13]([O:15][C:16]2[CH:21]=[CH:20][C:19]([C:22]([F:25])([F:24])[F:23])=[CH:18][C:17]=2[N+:26]([O-:28])=[O:27])[CH:12]=[CH:11][C:10]=1[N+:29]([O-:31])=[O:30])(=[O:8])[O:5]CC)C.Cl>C(O)C>[N+:29]([C:10]1[CH:11]=[CH:12][C:13]([O:15][C:16]2[CH:21]=[CH:20][C:19]([C:22]([F:23])([F:24])[F:25])=[CH:18][C:17]=2[N+:26]([O-:28])=[O:27])=[CH:14][C:9]=1[P:4](=[O:3])([OH:5])[OH:8])([O-:31])=[O:30]

Participants

4

Procedure

A mixture of 1.85 g of the 2-nitro-5-(2'-nitro-4'-trifluoromethylphenoxy)-phenylphosphonic acid diethyl ester obtained in Example 1, in 20 ml of ethanol, and 40 ml of 20% hydrochloric acid, is refluxed for 24 hours and then evaporated to dryness, affording as residue the monohydrate of the corresponding free phosphonic acid in the form of yellowish brown crystals in quantitative yield. Melting point: 175°-180° C.

Workup

  1. customevaporated to dryness

Sources & evidence

ORD record
ord-6144c449dd90491b94ee94f3143092d4
Source dataset
uspto-grants-1982_03
Patent number
US04322375

Reaction notes

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