Hydroxyamine hydrochloride → HCID 11012667, compound

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Reaction Steps

2-(4-Methoxy-benzenesulfonyl)-2-prop-2-ynyl-pent-4-ynoic acid hydroxyamide was prepared according to the method as outlined in Example 1. Starting from (4-methoxy-benzenesulfonyl)-2-prop-2-ynyl-pent-4-ynoic acid (0.25 g, 0.81 mmol) and hydroxylamine hydrochloride (0.70 g, 10 mmol), 0.22 g of the product was isolated. Yield 85%; white solid; mp 156° C.; MS: 321.9 (M+H)+; 1H NMR (300 MHz, DMSO-d6) δ 2.00-2.13 (m, 2H), 3.00-3.30 (m, 4H), 3.90 (s, 3H), 7.01 (d, J=9.0 Hz, 2H), 7.82 (d, J=9.0 Hz, 2H), 8.76 (brs, 1H), 10.65 (brs, 1H); IR (KBr, cm−1): 3392 s, 3293 s, 3271 m, 2955 m, 1650 s, 1594 s;

Provenance & Evidence