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Chemical Structure| 26558-91-8 Chemical Structure| 26558-91-8

Structure of 26558-91-8

Chemical Structure| 26558-91-8

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Product Details of [ 26558-91-8 ]

CAS No. :26558-91-8
Formula : C14H9NO4
M.W : 255.23
SMILES Code : CC(NC1=C2C(C(C(OC3=O)=O)=CC=C2)=C3C=C1)=O

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Application In Synthesis of [ 26558-91-8 ]

* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.

  • Downstream synthetic route of [ 26558-91-8 ]

[ 26558-91-8 ] Synthesis Path-Downstream   1~2

  • 1
  • [ 6492-86-0 ]
  • [ 108-24-7 ]
  • [ 26558-91-8 ]
YieldReaction ConditionsOperation in experiment
76% A mixture of <strong>[6492-86-0]4-amino-1,8-naphthalic anhydride</strong> (1 g, 4.7 mmol), pyridine (8 mL, 100 mmol) and CH3COOH (2 mL, 34 mmol), refluxed at 120 C for 1 h, then added acetic anhydride (16 mL, 168 mmol) for another 3 h. Cooled to room temperature and then poured to ice water, after filtration, the precipitate was washed with ice water and dried. A yellow solid (0.91 g) was obtained as the fluorophore (yield 76%). m.p. 139.0-140.0 C, ESI-MS calcd. for C14H10NO4 (M+H+): 256.1; found: 256.3.
71.3% To 4-amino-1,8-naphthalenedicimide (2 g, 9.3 mmol) was added 4 mL of glacial acetic acid, 20 mL of pyridine and refluxed for 1 h. Then 30 mL of acetic anhydride was added and the reaction was refluxed for 5 h. The reaction solution was allowed to stand at room temperature, poured into 200 mL of ice water, and the filter cake was washed with water to obtain a crude brown solid in a yield of 71.3%.
67.2% With pyridine; for 1h;Reflux; To a solution of 4-amino-1,8-naphthalimide (0.9 (2.3 mmol), 11% glacial acetic acid and 41% pyridine were added and the reaction was refluxed for 1 h.Then 8 mL of acetic anhydride was added and the reflux reaction was continued for 3 h.After the reaction solution is cooled, it is poured into ice water, filtered and the filter cake is washed with water,Brown solid, yield 67.2%.
  • 2
  • [ 6492-86-0 ]
  • [ 26558-91-8 ]
YieldReaction ConditionsOperation in experiment
With p-toluenesulfonic acid monohydrate; In acetic anhydride; EXAMPLE G3 4-Acetylamino-1,8-naphthalic anhydride A mixture of <strong>[6492-86-0]4-amino-1,8-naphthalic anhydride</strong> (20.0 g, 0.09 mol, from Example J3) and p-toluenesulfonic acid monohydrate (21.4 g, 0.11 mol) in acetic anhydride (200 mL) was stirred at room temperature for 36 hours. The solid was filtered, and washed with acetone to give 21.0 g of the title compound, mp 289-290 C.
 

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