Toluene 2,4-Diisocyanate → Toluene 2,4-Diisocyanate

HRID 2231889Notes

Reaction equation

HRID 2231889 reaction equation
[CH3:1][C:2]1[C:3]([N:11]=[C:12]=[O:13])=[CH:4][C:5]([N:8]=[C:9]=[O:10])=[CH:6][CH:7]=1>C(C(C)=O)C(C)C.C(C(C)=NO)C>[CH3:1][C:2]1[C:3]([N:11]=[C:12]=[O:13])=[CH:4][C:5]([N:8]=[C:9]=[O:10])=[CH:6][CH:7]=1.[N-:8]=[C:9]=[O:10]

Participants

5

Reactant 1

HCID 11443Toluene 2,4-Diisocyanate

Product 2

HCID 11443Toluene 2,4-DiisocyanateHCID 105034Isocyanate

Reagents, catalysts & solvents 2

HCID 72922-Butanone oximeSolventHCID 7909Methyl Isobutyl KetoneSolvent

Procedure

174 Parts of 2,4-tolylene diisocyanate was dissolved in 52 parts of methyl isobutyl ketone, and 87 parts of methyl ethyl ketoxime was added dropwise at 30° C. to give half-blocked tolylene diisocyanate having an isocyanate value of 241 and a solids content of 83%.

Workup

  1. additionwas added dropwise at 30° C.

Sources & evidence

ORD record
ord-8417a20f09cf410a8428dffd32e0b864
Source dataset
uspto-grants-1988_11
Patent number
US04785068

Reaction notes

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