Acetic Acid → HCID 22153608, compound

HRID 1111176Notes

Reaction equation

HRID 1111176 reaction equation
C(O)(=O)C.[NH2:5][CH:6]1[CH2:11][C:10]([CH3:13])([CH3:12])[NH:9][C:8]([CH3:15])([CH3:14])[CH2:7]1.[Cl:16][C:17]1[C:18]([Cl:30])=[C:19]([Cl:29])[C:20]([Cl:28])=[C:21]2[C:26](=[O:27])[O:25][C:23](=[O:24])[C:22]=12>C(OC(=O)C)(=O)C>[CH3:12][C:10]1([CH3:13])[CH2:11][CH:6]([NH:5][C:26](=[O:27])[C:21]2[C:22](=[C:17]([Cl:16])[C:18]([Cl:30])=[C:19]([Cl:29])[C:20]=2[Cl:28])[C:23]([OH:25])=[O:24])[CH2:7][C:8]([CH3:15])([CH3:14])[NH:9]1

Participants

5

Reactant 3

HCID 176Acetic AcidHCID 8326Tetrachlorophthalic anhydrideHCID 375244-Amino-2,2,6,6-tetramethylpiperidine

Product 1

HCID 22153608HCID 22153608, compound

Reagents, catalysts & solvents 1

HCID 7918Acetic AnhydrideSolvent

Procedure

The acetic acid salt of N-(2,2,6,6-tetramethyl-4-piperidinyl)tetrachlorophthalamic acid was prepared by refluxing 7.8 grams (0.05 mole) of 4-amino-2,2,6,6-tetramethylpiperidine, 14.3 grams (0.05 mole) of tetrachlorophthalic anhydride in 100 ml of acetic anhydride for 4 hours. The acetic anhydride was stripped off on a rotary evaporator under reduced pressure. The light yellow residue was slurried in 300 ml hexane and filtered. The filter cake was reslurried in fresh hexane and refiltered. The filter cake was air dried for 3 days on a watch glass. The dried product weighed 26.5 grams.

Workup

  1. customThe acetic anhydride was stripped off on a rotary evaporator under reduced pressure
  2. filtrationfiltered
  3. customdried for 3 days on a watch glass

Sources & evidence

ORD record
ord-4dd3bdebac2a47caaa313c78f1d4f66c
Source dataset
uspto-grants-1990_12
Patent number
US04978699

Reaction notes

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