Benzaldehyde → alpha-Phenyl-N-(1,2,2,6,6-pentamethylpiperidin-4-yl) nitrone

HRID 1073973

Reaktionsgleichung

Reaktionsgleichung von HRID 1073973
[CH3:1][N:2]1[C:7]([CH3:9])([CH3:8])[CH2:6][C:5](=[N:10][OH:11])[CH2:4][C:3]1([CH3:13])[CH3:12].[CH:14](=O)[C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1>>[C:15]1([CH:14]=[N+:10]([CH:5]2[CH2:6][C:7]([CH3:9])([CH3:8])[N:2]([CH3:1])[C:3]([CH3:13])([CH3:12])[CH2:4]2)[O-:11])[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1

Komponenten

3

Edukt 2

HCID 240BenzaldehydeHCID 2419501,2,2,6,6-Pentamethyl-piperidin-4-one oxime

Produkt 1

HCID 73159783alpha-Phenyl-N-(1,2,2,6,6-pentamethylpiperidin-4-yl) nitrone

Versuchsvorschrift

Following the general procedure of Example 1, the title compound is prepared from 5.0 g (29.4 mmol) of 1,2,2,6,6-pentamethylpiperidin-4-one oxime and 3.1 g [29 mmol) of benzaldehyde in a yield of 2.3 g (30%) of a white solid which after recrystallization from heptane melts at 104°-105° C. 1HMR (200 MHz, CDCl3)δ 8.26 (m, 2H's); 7.45 (s, 1H); 7.40 (m, 3H's); 4.18 (tt, IH); 2.28 (s, 3H's); 2.13 (t, 2H's); 1.93 (dd, 2H's); 1.23 (s, 6H's); 1.10 (s, 6H's). IR (CDCl3) 3020, 2950, 1570, 1550,

Aufarbeitung

  1. customafter recrystallization from heptane melts at 104°-105° C

Quellen und Nachweise

ORD-Eintrag
ord-e07e68c3b14f4afeb76110eca04025c2
Quelldatensatz
uspto-grants-1990_11
Patentnummer
US04972009

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