Toluene 2,4-Diisocyanate → Formaldehyde

HRID 259383Notes

Reaction equation

HRID 259383 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

40.9 parts by weight of an isocyanate mixture of which 40% by weight consists of a tolylene diisocyanate mixture (2,4- and 2,6-isomers in a ratio by weight 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.

Sources & evidence

ORD record
ord-aea1cb8827ad4a85afad9a7e1219cea6
Source dataset
uspto-grants-1977_07
Patent number
US04038221

Reaction notes

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