Reaction #355332

Reaction equation

2,4-TDI

methyl butyl ketone

2-ethylhexanol

→

2-ethylhexanol monourethane

2,4-toluene diisocyanate

Conditions

Workup

1. 1
   Temperaturewith external cooling
2. 2
   Temperatureto maintain the reaction temperature below 18° C
3. 3
   workup.ADDITIONAfter addition

Procedure

A 2-ethylhexanol monourethane of 2,4-toluene diisocyanate sample was prepared by adding 651 parts of 2-ethylhexanol to an agitated mixture of 870 parts of 2,4-TDI and 100 parts methyl butyl ketone over approximately 3 hours, with external cooling to maintain the reaction temperature below 18° C. After addition was complete, the batch was agitated an additional 2 hours and stored under dry nitrogen for subsequent use.

Source