HNO3 [H Ac20 Cl2 CH H3o hno2 CH3 NHCocH H2PO 2 CH2-Organic Chemistry Organic Chemistry Xiamen Xiamen University University H 3PO 2 CH 3 HNO 3 [H ] Ac 2 O Cl 2 CH 3 NHCOCH 3 Cl H 3 O + HNO 2 CH 3 Cl