Reaktion #2357530

Reaktionsgleichung

NaOH

2-(4-methoxy-benzenesulfonyl)-5-methyl-2-pyridin-3-ylmethyl-hex-4-enoic acid ethyl ester

2-(4-methoxy-benzenesulfonyl)-5-methyl-2-pyridin-3-ylmethyl-hex-4-enoic acid

→

2-(4-methoxy-benzenesulfonyl)-5-methyl-2-pyridin-3-ylmethyl-hex-4-enoic acid hydroxyamide

2-(4Methoxy-benzenesulfonyl)-5-methyl-2-pyridin-3-ylmethyl-hex-4 enoic acid

Lösungsmittel

methanol

Reaktionsbedingungen

Aufarbeitung

1. 1
   SonstigeThe resulting reaction mixture

Vorschrift

2-(4Methoxy-benzenesulfonyl)-5-methyl-2-pyridin-3-ylmethyl-hex-4 enoic acid was prepared starting from 2-(4-methoxy-benzenesulfonyl)-5-methyl-2-pyridin-3-ylmethyl-hex-4-enoic acid ethyl ester (4.0 g, 9.5 mmol) dissolved in methanol (50 ml) and 10 N NaOH (30 ml). The resulting reaction mixture was worked up as outlined in Example 9. Yield 3.2 g, 87%; ivory solid; mp 117-119° C.; MS: 390 (M+H)+. Starting from 2-(4-methoxy-benzenesulfonyl)-5-methyl-2-pyridin-3-ylmethyl-hex-4-enoic acid (2.1 g, 5.4 mmol) and following the procedure as outlined in Example 1, 1.82 g of 2-(4-methoxy-benzenesulfonyl)-5-methyl-2-pyridin-3-ylmethyl-hex-4-enoic acid hydroxyamide was isolated as a colorless solid. Yield: 82%; mp 89-92° C.; MS: 405 (M+H)+; 1H NMR (300 MHz, CDCl3): δ1.63 (s, 3H), 1.76 (s, 3H), 2.62-2.78 (m, 2H), 3.3 (d, J=4.0 Hz, 1H), 3.63 (d, J=4.0 Hz, 1H), 3.82 (s, 3H), 5.26 (m, 1H), 7.12-7.88 (m, 6H), 8.27-8.33 (m. 2H).

Quelle