Carbon tetrabromide → tert-Butyl 2-(2,2-dibromoethenyl)pyrrolidine-1-carboxylate

HRID 359474

Reaktionsgleichung

Reaktionsgleichung von HRID 359474
[CH:1]([C@@H:3]1[CH2:7][CH2:6][CH2:5][N:4]1[C:8]([O:10][C:11]([CH3:14])([CH3:13])[CH3:12])=[O:9])=O.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.[C:34](Br)(Br)([Br:36])[Br:35]>C(Cl)Cl>[Br:35][C:34]([Br:36])=[CH:1][CH:3]1[CH2:7][CH2:6][CH2:5][N:4]1[C:8]([O:10][C:11]([CH3:14])([CH3:13])[CH3:12])=[O:9]

Komponenten

5

Versuchsvorschrift

Following the procedure of Example 3, 6.8 g of (S)-2-formyl-1-pyrrolidinecarboxylic acid, 1,1-dimethylethyl ester in 20 ml of methylene chloride is reacted with 40 g of triphenylphosphine, 26 g of carbon tetrabromide in 700 ml of methylene chloride to give 5.8 g of the desired product as a colorless solid, mp 58°-59° C., [α]D26° =+24°±1 (C=1.048%, methylene chloride).

Quellen und Nachweise

ORD-Eintrag
ord-b67f8ac7f60d4737b2e9d3e9ec551415
Quelldatensatz
uspto-grants-1991_03
Patentnummer
US05001142

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