Dipropargylamine → 2,4-Bis-benzyloxy-5-isopropenyl-N,N-di-prop-2-ynyl-benzamide

HRID 241829Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 241829
[CH2:1]([O:8][C:9]1[CH:17]=[C:16]([O:18][CH2:19]C2C=CC=CC=2)[C:15]([C:26]([CH3:28])=[CH2:27])=[CH:14][C:10]=1[C:11]([OH:13])=O)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.Cl.C(N=C=NCCCN(C)C)C.ON1[C:46]2[CH:47]=[CH:48][CH:49]=[CH:50][C:45]=2N=N1.[CH2:51]([NH:54][CH2:55][C:56]#[CH:57])[C:52]#[CH:53]>ClCCl>[CH2:1]([O:8][C:9]1[CH:17]=[C:16]([O:18][CH2:19][C:45]2[CH:50]=[CH:49][CH:48]=[CH:47][CH:46]=2)[C:15]([C:26]([CH3:28])=[CH2:27])=[CH:14][C:10]=1[C:11]([N:54]([CH2:55][C:56]#[CH:57])[CH2:51][C:52]#[CH:53])=[O:13])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1

Komponenten

6

Edukt 4

HCID 23350DipropargylamineHCID 757711-HydroxybenzotriazoleHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 498640162,4-Bis(benzyloxy)-5-isopropenylbenzoic acid

Produkt 1

HCID 581575202,4-Bis-benzyloxy-5-isopropenyl-N,N-di-prop-2-ynyl-benzamide

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

A stirred solution of 2,4-bis-benzyloxy-5-isopropenyl-benzoic acid (Example 1 Step 6) (1 equivalent) in dichloromethane (10 ml) was treated successively with N-ethyl-N′-(3-dimethylaminopropyl)carbodiimide hydrochloride (1.2 equivalents), 1-hydroxybenzotriazole (1.2 equivalents) and dipropargylamine (1.5 equivalents) and the mixture was stirred at room temperature overnight. The mixture was washed successively with 2M hydrochloric acid and 2M sodium hydroxide, the organic layer was separated and the solvent removed in vacuo to afford the product which was either obtained pure or was purified by column chromatography on silica (eluting with mixtures of ethyl acetate in petroleum ether or methanol in ethyl acetate as appropriate). MS: [M+H]+ 450

Aufarbeitung

  1. washThe mixture was washed successively with 2M hydrochloric acid and 2M sodium hydroxide
  2. customthe organic layer was separated
  3. customthe solvent removed in vacuo
  4. customto afford the product which
  5. customwas purified by column chromatography on silica (eluting with mixtures of ethyl acetate in petroleum ether or methanol in ethyl acetate as appropriate)

Quellen und Nachweise

ORD-Eintrag
ord-67924166b19a4afabc46ba53151dc276
Quelldatensatz
uspto-grants-2014_02
Patentnummer
US08653084B2

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