Dapsone → Formaldehyde

HRID 736576

Reaction equation

HRID 736576 reaction equation
[C:1]1(N)[CH:6]=[CH:5][CH:4]=[C:3]([NH2:7])[CH:2]=1.C1(N)C=CC(N)=CC=1.C1(CN)C=CC=C(CN)C=1.C1(CN)C=CC(CN)=CC=1.NC1(N)C=CC(C2C=CC=CC=2)=CC1.NC1C=CC(CC2C=CC(N)=CC=2)=CC=1.NC1C=C[C:70]([O:73]C2C=CC(N)=CC=2)=CC=1.NC1C=CC(S(C2C=CC(N)=CC=2)(=O)=O)=CC=1.NC1C=CC(C(C2C=CC(N)=CC=2)(C)C)=CC=1>>[NH2:7][C:3]1[CH:4]=[CH:5][CH:6]=[CH:1][CH:2]=1.[CH2:70]=[O:73]

Participants

11

Reactant 9

HCID 2955DapsoneHCID 75774,4-DiaminodiphenylmethaneHCID 75794,4'-Diaminodiphenyl EtherHCID 7814P-PhenylenediamineHCID 7935M-PhenylenediamineHCID 151331,3-BenzenedimethanamineHCID 683151,4-BenzenedimethanamineHCID 755914,4'-IsopropylidenedianilineHCID 669114894,4-Diaminobiphenyl

Product 2

HCID 712FormaldehydeHCID 6115Aniline

Procedure

Examples of the preferable polyamine include metaphenylene diamine, paraphenylene diamine, metaxylylene diamine, paraxylylene diamine, 4,4-diaminobiphenyl, bis(4-aminophenyl)methane, bis(4-aminophenyl)ether, bis(4-aminophenyl)sulfone, 2,2-bis(4-aminophenyl)propane, melanins having s-triazine rings, and polyamine obtained by a reaction between aniline and formaldehyde (usually, an decanuclear or less substance is preferably used).

Sources & evidence

ORD record
ord-c948ebb4ee364b569e352f30b89c7433
Source dataset
uspto-grants-2009_09
Patent number
US07595362B2

Linked notes

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