Cysteamine → Ethyl thiomorpholine-3-carboxylate

HRID 725230

反応式

HRID 725230 の反応式
[NH2:1][CH2:2][CH2:3][SH:4].C(N(CC)CC)C.Br[CH:13]([CH2:19]Br)[C:14]([O:16][CH2:17][CH3:18])=[O:15].C(Cl)(Cl)Cl.C1(C)C=CC=CC=1>C(Cl)(Cl)Cl>[NH:1]1[CH2:2][CH2:3][S:4][CH2:19][CH:13]1[C:14]([O:16][CH2:17][CH3:18])=[O:15]

参加物

6

反応物 4

HCID 6058CysteamineHCID 8471TriethylamineHCID 97945Ethyl 2,3-dibromopropionateHCID 22987606Toluene trichloromethane

生成物 1

HCID 13604869Ethyl thiomorpholine-3-carboxylate

試薬・触媒・溶媒 1

HCID 6212Chloroform溶媒

実験手順

A warm solution of 2-aminoethanethiol (10.0 g, 0.130 mol) and triethylamine (36 mL, 0.260 mol) in chloroform is added over 5 minutes to a solution of ethyl 2,3-dibromopropionate (33.9 g, 0.130 mol) in a chloroform/toluene (1:1.6) solution. The reaction mixture is stirred at room temperature for 2.5 hours, filtered and concentrated in vacuo to obtain an orange liquid. The liquid is vacuum distilled to give the title product as a colorless liquid, bp 121°-124° C. at 3 mm Hg.

後処理

  1. filtrationfiltered
  2. concentrationconcentrated in vacuo
  3. customto obtain an orange liquid
  4. distillationdistilled

出典と根拠

ORDレコード
ord-f812b549d9654a7b9d4c9b4db3c56f9e
出典データセット
uspto-grants-1998_01
特許番号
US05705644

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