1: 3-chloro-aniline With hydrogenchloride; sodium nitrite in water T=-2 - 0°C; 1 h; Green chemistry; 2: With ascorbic acid powder in water T=-2 - 0°C; Green chemistry; 3: 3-aminocrotononitrile in water T=45 - 90°C; Green chemistry;
Tordeux, Marc; Langlois, Bernard; Wakselman, Claude
Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1990 , # 8 p. 2293 - 2299