Aziridine → HCID 20373424, compound

HRID 1439778Notes

Reaction equation

HRID 1439778 reaction equation
[NH2:1][CH2:2][CH2:3][CH:4]1[CH2:9][CH2:8][CH:7]([CH2:10][CH2:11][NH2:12])[CH2:6][CH2:5]1.[CH2:13]1[NH:15][CH2:14]1.[Cl-].[NH4+]>>[NH2:15][CH2:14][CH2:13][NH:1][CH2:2][CH2:3][CH:4]1[CH2:9][CH2:8][CH:7]([CH2:10][CH2:11][NH2:12])[CH2:6][CH2:5]1

Participants

4

Procedure

1,4-Bis-(2-aminoethyl)cyclohexane (68 gm., 0.4 mole) and ethyleneimine (4.3 gm., 0.1 mole) with 0.4 g. ammonium chloride are mixed in a glasslined pressure reactor and filled with nitrogen to 100 psi. The mixture is shaken and heated at 85° C.-95° C. for 48 hours. After cooling, it is distilled rapidly free of the salt and then fractionated under high vacuum. The starting diamine is readily distinguished from the triamine product by thin layer chromatography on silica gel using a mixture of 1 volume concentrated aqueous ammonium hydroxide with 4 volume methyl alcohol, the diamine having a much higher Rf.

Workup

  1. additionfilled with nitrogen to 100 psi
  2. temperatureheated at 85° C.-95° C. for 48 hours
  3. temperatureAfter cooling
  4. distillationit is distilled rapidly free of the salt
  5. additiona mixture of 1 volume concentrated aqueous ammonium hydroxide with 4 volume methyl alcohol

Sources & evidence

ORD record
ord-0a1f33e5eb41412db4af429c25c62dae
Source dataset
uspto-grants-1977_11
Patent number
US04060639

Reaction notes

Loading…