Pyromellitic dianhydride → HCID 69721180, compound

HRID 2307722Notes

Reaction equation

HRID 2307722 reaction equation
[N:1]1[CH:6]=[CH:5][CH:4]=[N:3][C:2]=1[O:7][C:8]1[CH:9]=[C:10]([CH:23]=[CH:24][CH:25]=1)[CH2:11][NH:12][C@@H:13]1[C:22]2[C:17](=[CH:18][CH:19]=[CH:20][CH:21]=2)[CH2:16][CH2:15][CH2:14]1.[CH:26]1[C:31]2[C:32]([O:34][C:35](=[O:36])[C:30]=2[CH:29]=[C:28]2[C:37]([O:39][C:40](=[O:41])[C:27]=12)=[O:38])=[O:33].C(N(C(C)C)CC)(C)C.C([O-])([O-])=[O:52].[Na+].[Na+]>>[N:1]1[CH:6]=[CH:5][CH:4]=[N:3][C:2]=1[O:7][C:8]1[CH:9]=[C:10]([CH:23]=[CH:24][CH:25]=1)[CH2:11][N:12]([C@@H:13]1[C:22]2[C:17](=[CH:18][CH:19]=[CH:20][CH:21]=2)[CH2:16][CH2:15][CH2:14]1)[C:32]([C:31]1[CH:26]=[C:27]([C:40]([OH:39])=[O:41])[C:28]([C:37]([OH:52])=[O:38])=[CH:29][C:30]=1[C:35]([OH:34])=[O:36])=[O:33]

Participants

5

Reactant 4

HCID 6966Pyromellitic dianhydrideHCID 10340Sodium CarbonateHCID 81531DiisopropylethylamineHCID 69720977HCID 69720977, compound

Product 1

HCID 69721180HCID 69721180, compound

Procedure

The product from Example 107A, 1,2,4,5-benzenetetracarboxylic dianhydride (0.125 g, 0.57 mmol) and diisopropylethyl amine (0.4 mL, 2.3 mmol) were processed as described in Example 1B. The reaction mixture was treated with saturated Na2CO3 solution (30 mL) and stirred vigorously at room temperature for 1 hour. The layers were separated and the aqueous layer was acidified with 1N HCl. The acidified aqueous layer was evaporated under reduced pressure to afford a solid. Soxhlet extraction (ethanol) of the crude solid, followed by RP-HPLC, provided the title compound (4 mg).

Workup

  1. customThe layers were separated
  2. customThe acidified aqueous layer was evaporated under reduced pressure
  3. customto afford a solid
  4. extractionSoxhlet extraction (ethanol) of the crude solid

Sources & evidence

ORD record
ord-d5658ca973514d6d92de6d7b0b8cfcce
Source dataset
uspto-grants-2004_12
Patent number
US06831193B2

Reaction notes

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