N-(5-(phenylamino)penta-2,5-dienylidene)aniline monohydrochloride → 2-[6-anilino-1,3,5-hexatrienyl]-4,6-diiodo-1,3,3-trimethyl-3H-indolium iodide

HRID 508302Notes

Reaction equation

HRID 508302 reaction equation
[I-].[I:2][C:3]1[CH:11]=[C:10]([I:12])[CH:9]=[C:8]2[C:4]=1[C:5]([CH3:16])([CH3:15])[C:6]([CH3:14])=[N+:7]2[CH3:13].Cl.[C:18]1([NH:24][CH:25]=[CH:26][CH:27]=[CH:28][CH:29]=NC2C=CC=CC=2)[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1>C(OC(=O)C)(=O)C>[I-:2].[NH:24]([CH:25]=[CH:26][CH:27]=[CH:28][CH:29]=[CH:14][C:6]1[C:5]([CH3:16])([CH3:15])[C:4]2[C:8](=[CH:9][C:10]([I:12])=[CH:11][C:3]=2[I:2])[N+:7]=1[CH3:13])[C:18]1[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=1

Participants

4

Reactant 2

HCID 73902N-(5-(phenylamino)penta-2,5-dienylidene)aniline monohydrochlorideHCID 866953314,6-diiodo-1,2,3,3-tetramethyl-3H-indolium iodide

Product 1

HCID 866953412-[6-anilino-1,3,5-hexatrienyl]-4,6-diiodo-1,3,3-trimethyl-3H-indolium iodide

Reagents, catalysts & solvents 1

HCID 7918Acetic AnhydrideSolvent

Procedure

100 mg (0.18 mmol) of 4,6-diiodo-1,2,3,3-tetramethyl-3H-indolium iodide and 51 mg (0.18 mmol) of N-[5-(phenylamino)-2,4-pentadienylidene]aniline monohydrochloride were stirred in 2 mL of acetic anhydride at 110-120° C. for 15 min. After cooling the product was precipitated with ether, filtered off and washed with ether. Yield: 67 mg (53%). λmax (abs) 483 nm (methanol). This product was used for following step without additional purification.

Workup

  1. temperatureAfter cooling the product
  2. customwas precipitated with ether
  3. filtrationfiltered off
  4. washwashed with ether
  5. customwithout additional purification

Sources & evidence

ORD record
ord-426f7199cb76477f8b085e6df98ec793
Source dataset
uspto-grants-2015_08
Patent number
US09095612B2

Reaction notes

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