Caprolactam → HCID 23686479, compound

HRID 1730254Notes

Reaction equation

HRID 1730254 reaction equation
CC(C)([O-])C.[Na+:6].[C:7]1(=[O:14])[NH:13][CH2:12][CH2:11][CH2:10][CH2:9][CH2:8]1>>[CH2:10]1[CH2:11][CH2:12][N:13]=[C:7]([O-:14])[CH2:8][CH2:9]1.[Na+:6]

Participants

3

Reactant 2

HCID 7768CaprolactamHCID 23676156Sodium t-butoxide

Product 1

HCID 23686479HCID 23686479, compound

Conditions

Temperature
180 °C

Procedure

Sodium caprolactamate is prepared from sodium tert. butoxide and dissolved in caprolactam in the amount of 0.3 mol %. 0.3 Mol % of 2,2,4-trimethyl-3-oxopentanoyl-(4'-phenylazo)aniline is dissolved in the solution thus obtained. The polymerization product containing 89.5% of thecolored polyamide is obtained after heating to 180° C for 15 minutes; the polyamide contains 100% of the dye incorporated therein. Evenif the polymerization is carried out for 60 minutes, 96.5% of the polymer is formed which exhibits over 90% of the original color absorption. On thecontrary, if 2-benzoyl-2-(4'-dimethylaminophenylazo)-acetanilide is used (adye of the Hansa Yellow type), only 10-20% of the original color absorptionremains in the polymer under the same conditions.

Workup

  1. customthus obtained
  2. customis obtained

Sources & evidence

ORD record
ord-7826aaf6b21a48668c6c41c223f6a405
Source dataset
uspto-grants-1976_11
Patent number
US03992361

Reaction notes

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