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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1034533Generated: October 25, 2026

Diphenylmethane diisocyanate → Toluene 2,4-Diisocyanate

https://huagongshe.com/reaction/1034533

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiphenylmethane diisocyanateHCID 7570—
ReactantHexane, 1,6-diisocyanato-2,4,4-trimethyl-HCID 61807—
Reactant1,6-Diisocyanato-2,2,4-trimethylhexaneHCID 61858—
ReactantPhenylene diisocyanateHCID 11309666—
Reactant1,1'-Biphenyl,4,4'-diisocyanato-HCID 21885327—
Reactant3,3'-Dimethoxy-4,4'-biphenyldiisocyanateHCID 86734816—
ReactantTetra-methyl xylene diisocyanateHCID 86760756—
ProductToluene 2,4-DiisocyanateHCID 11443—

Reaction Steps

diphenylmethane-4,4′-diisocyanate (MDI); hydrogenated diphenylmethane-4,4′-diisocyanate (H12MDI); tetra-methyl xylene diisocyanate (TMXDI); hexamethylene-1,6-diisocyanate (HDI), of the formula: OCN—(CH2)6—NCO naphthalene-1,5-diisocyanate; 3,3′-dimethoxy-4,4′-biphenyldiisocyanate; 3,3′-dimethyl-4,4′-bimethyl-4,4′-biphenyldiisocyanate; phenylene diisocyanate; 4,4′-biphenyldiisocyanate; 2,2,4-trimethylhexamethylene diisocyanate and 2,4,4-trimethylhexamethylene diisocyanate, of the formulae:

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08544987B2
Source datasetuspto-grants-2013_10
ORD IDord-4816c80b38324c09962e9c92aba58613
Source noteuspto-grants-2013_10