Toluene 2,4-Diisocyanate → Formaldehyde

HRID 866723Notes

Reaction equation

HRID 866723 reaction equation
[N-]=[C:2]=[O:3].C[C:5]1[C:6](N=C=O)=[CH:7][C:8]([N:11]=C=O)=[CH:9][CH:10]=1>>[NH2:11][C:8]1[CH:9]=[CH:10][CH:5]=[CH:6][CH:7]=1.[CH2:2]=[O:3]

Participants

4

Reactant 2

HCID 11443Toluene 2,4-DiisocyanateHCID 105034Isocyanate

Product 2

HCID 712FormaldehydeHCID 6115Aniline

Procedure

41.4 parts, by weight, of an isocyanate mixture of which 40%, by weight, consists of a tolylene diisocyanate mixture (2,4- and 2,6-isomer in a ratio of 65:35) and 60%, by weight, of a polyphenyl polymethylene polyisocyanate (viscosity approximately 200 cP at 25° C). The polyphenyl polymethylene polyisocyanate was obtained by condensing aniline with formaldehyde, followed by phosgenation (NCO content 38% b.w.).

Sources & evidence

ORD record
ord-a923bbe6062349008cdf80c1241f1c4f
Source dataset
uspto-grants-1978_07
Patent number
US04101468

Reaction notes

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