Cyclohexylamine → Hexamethylene diisocyanate

HRID 365231

Reaction equation

HRID 365231 reaction equation
[CH2:1]([CH2:8][CH2:9][N:10]=[C:11]=[O:12])[CH2:2][CH2:3][CH2:4][N:5]=[C:6]=[O:7].C1([NH2:19])CCCCC1>>[NH:19]=[C:11]=[NH:10].[CH2:1]([CH2:8][CH2:9][N:10]=[C:11]=[O:12])[CH2:2][CH2:3][CH2:4][N:5]=[C:6]=[O:7]

Participants

4

Reactant 2

HCID 7965CyclohexylamineHCID 13192Hexamethylene diisocyanate

Product 2

HCID 13192Hexamethylene diisocyanateHCID 160435Carbodiimide

Conditions

Temperature
100 °C

Procedure

To 288 g of HMDI was added 20 g of cyclohexylamine and they were stirred at 100° C. for one hour while nitrogen was bubbled thereinto and subsequently 2.9 g of the carbodiimidization catalyst was added thereto, after which the resulting mixture was subjected to a reaction at 185° C. for 30 hours, to obtain a carbodiimide resulting from HMDI and having terminal urea bonds (degree of polymerization=10).

Workup

  1. customwas bubbled
  2. additionsubsequently 2.9 g of the carbodiimidization catalyst was added
  3. customafter which the resulting mixture was subjected to a reaction at 185° C. for 30 hours

Sources & evidence

ORD record
ord-6858653c8c6c48ca99556191755878c2
Source dataset
uspto-grants-2000_10
Patent number
US06126860

Linked notes

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