Question

r e c ast Periode table of Com CCHE 232 Mov Comparing The SN Med trane 4. (24 points) Provide the necessary reagents to accomplish the desired organic reactions. Please number the steps and note that some reactions will require more than one step. (a) (4 points) Ph Mà Ph . Троме (b) (4 points

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Answer 1

4.

Ph PhtC Phの Pb ph Siep-A +HC ph ep 2 ph ph Be fp me とい Me Step1 Me Me step 2 Na eN me CN+Nad Me 5. ay CH3 NaT Na Br DMSO Finkels tein reactbon

a) Triphenylmethyl chloride will form tertiary carbocation first which is rate determining step and then 2-propanol will attack on carbocation so will get our desired product. So this is SN1 reaction.

b) 4-methyl-1-butanol was converted to 4-methylbutyl chloride using POCl3 in step1. Then this alkyl halide will trat with NaCN to get desired product, step2 is SN2 reaction.

5.

a) This reaction is known as Finkelstein reaction, in this reaction iodine act as nucleophile and attack on back side of bromine to get inversion of of configuration of product and sodium bromide as a byproduct.