2-Morpholinoethylamine → 2-[3,5-Bis(2-hydroxyphenyl)-[1,2,4]triazol-1-yl]-N-(2-morpholin-4-yl-ethyl)-acetamide

HRID 2086111Notes

Reaction equation

HRID 2086111 reaction equation
[OH:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C:8]1[N:12]=[C:11]([C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][C:14]=2[OH:19])[N:10]([CH2:20][C:21](OCC)=[O:22])[N:9]=1.[NH2:26][CH2:27][CH2:28][N:29]1[CH2:34][CH2:33][O:32][CH2:31][CH2:30]1>O1CCCC1>[OH:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C:8]1[N:12]=[C:11]([C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][C:14]=2[OH:19])[N:10]([CH2:20][C:21]([NH:26][CH2:27][CH2:28][N:29]2[CH2:34][CH2:33][O:32][CH2:31][CH2:30]2)=[O:22])[N:9]=1

Participants

4

Reactant 2

HCID 4082852-MorpholinoethylamineHCID 135914986Ethyl [3,5bis(2-hydroxyphenyl)-[1,2,4]triazol-1-yl]acetate

Product 1

HCID 1358174652-[3,5-Bis(2-hydroxyphenyl)-[1,2,4]triazol-1-yl]-N-(2-morpholin-4-yl-ethyl)-acetamide

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

5.0 g of ethyl [3,5-bis(2-hydroxyphenyl)-[1,2,4]triazol-1-yl]acetate (Example 2) and 2.9 ml of 4-(2-aminoethyl)morpholine are boiled under reflux for 18 h in 50 ml of tetrahydrofuran. The mixture is cooled, poured onto water and extracted with ethyl acetate. The combined organic phases are dried over sodium sulfate and concentrated on a rotary evaporator. The residue is crystallized from isopropanol. After drying, 2-[3,5-bis(2-hydroxyphenyl)-[1,2,4]triazol-1-yl]-N-(2-morpholin-4-yl-ethyl)acetamide remains as colorless crystals of m.p. 180-182° C.

Workup

  1. temperatureThe mixture is cooled
  2. additionpoured onto water
  3. extractionextracted with ethyl acetate
  4. dry with materialThe combined organic phases are dried over sodium sulfate
  5. concentrationconcentrated on a rotary evaporator
  6. customThe residue is crystallized from isopropanol
  7. customAfter drying

Sources & evidence

ORD record
ord-bf6f4b8c172e4f2bb18c0375f83e6f4f
Source dataset
uspto-grants-2004_04
Patent number
US06723742B2

Reaction notes

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