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- MECHANISM ACTIVITY Base-Induced Ester Hydrolysis (Saponification) NOC XT Step 1: Nucleophilic addition of hydroxide ion to the ester carbonyl group Ahrs MPR R16 H3C. R Part A (1 of 2) Draw the curved arrows for Step 1 of this mechanism. Arrow-pushing Instructions CH3 H-O: ÖH OR' :Ö H-O: O: H H H H 1x xxx CH3 CH3 Step 1 H3C. CH3 заCould u show the products and the mechanism of the following reaction and give a short explenation? Is it possibel for elemental bromine to form ? CH KBRO3 + HBraq. H3C НОАС P. +Voltooi die volgende reaksie en stel 'h meganisme voor. Complete the following reaction and propose a mechanism. 1) CO2, P, A 2) H20, H*
- 1. Propose a mechanism for the following transformation: R COOH (1) H₂C-O, (C₂H₂)₂NH (2) H₂O, acetate buffer R CH₂Predict the products for the following reactions by showing complete reaction mechanisms. Also, identify the nucleophilic attack, loss of leaving group, proton transfer, rearrangement in the mechanism steps. Show curved arrows in the reaction mechanisms 1- 2- COCH3 NaBH4/H₂O COCH 3 1. LIAIH4 2. H₂Oc) Predict the product of the first and third steps and propose a mechanism for all three steps. Br2 NaH CH;OH H20 + EN H*
- Show the mechanisms of the following reactions and the products. 2 H Oi. ona t? Ph-CH₂-ON₂ 1)OH H + HCHO 21H30 ?PROPOSE THE MECHANISM FOR REACTION. EXPLAIN HOW THE REACTION OCCURS AND WHAT KIND OF REACTION. 1) DMP, CH;Cl2 0 °C-rt, 2 h LOH 2) [P(Ph)3CH2IJ*r NaHMDS, THF 0 °C--78 °C 3 h, 69% 23N-Nitrosamines by themselves are not significant carcinogens. However, they are activated in the liver by a class of iron-containing enzymes (members of the cytochrome P-450 family). Activation involves the oxidation of a C-H bond next to the amine nitrogen to a C-OH group. OH ОН N=0 N=O Og 'N- H+ H N,+ cyt P-450 N-Nitroso- 2-Нydroxy-N- nitrosopiperidine An alkyl diazonium ion piperidine (a carcinogen) Show how this hydroxylation product can be transformed into an alkyl diazonium ion, an active alkylating agent and therefore a carcinogen, in the presence of an acid catalyst.