Reaktion #87623

Reaktionsgleichung

N-(3-amino-4-chloro-2-fluorobenzyl)pivalamide

sodium nitrite

→

HCl

desired product

N-(4-chloro-2-fluoro-3-hydrazinylbenzyl)pivalamide

Lösungsmittel

water

H2O

Reaktionsbedingungen

Aufarbeitung

1. 1
   SonstigeThe title compound was prepared

Vorschrift

The title compound was prepared according to the procedure described in step-2 of Intermediate-7 by using N-(3-amino-4-chloro-2-fluorobenzyl)pivalamide (0.500 g, 1.93 mmol), sodium nitrite (0.200 g, 2.90 mmol), stannous chloride. H2O (4.84 g, 1.09 mmol), conc. HCl (20.0 g) and water (3 mL) to afford 0.300 g of the desired product. 1H NMR (300 MHz, DMSO d6): δ 1.12 (s, 9H), 4.23 (d, J=5.4 Hz, 2H), 4.34 (br s, 2H), 5.91 (s, 1H), 6.65 (t, J=7.8 Hz, 1H), 8.02 (m, 1H); MS (m/z): 274.08 (M+H+).

Quelle