1: 1 M ethylchloroformate, 0.04 M N-methylmorpholine, 0.01 M HCl / tetrahydrofuran / 0.05 h / Ambient temperature 2: 0.02 M HCl / 0.17 h 3: 4 percent / 1 N aq. HCl / diethyl ether View Scheme
1: 1 M ethylchloroformate, 0.04 M N-methylmorpholine, 0.01 M HCl / tetrahydrofuran / 0.05 h / Ambient temperature 2: 0.02 M HCl / 0.17 h 3: 69 percent / 1 N aq. HCl / diethyl ether View Scheme