Question

1. (2 points) Provide the IUPAC name for the following structure. он 2. (2 points) Draw the structure from the provided name: 5-chloro-2,2-dimethylcyclohexane-1,3-dione. 3. (6 points) The following reaction produces five different substitution and elimination products, (a) Draw these products and (b) rank the stability of the elimination products by using the labels (E1-E3) according to the products as you have entered them. substitution product S1 substitution product S2 HzC04 CF, H-OH elimination product E1 elimination product E2 elimination product E3 least stable most stable

Answer 1

5 main porsts for an IUPAC name Contains Organic compound. Secondary Poiman LPrefix J7 Prefix 1+ Word ord. Root + Boma Suffix * Word Root: This gives information about the number Carbon atoms present in principal Carbon chain. * Word root for the given compound is but, as it's principaiſ carbon chain has 4 Carbon atoms, * Primary Prefix : Gives information about Cyclic poincipal | -Carbon chain. If it is cyclic then prefix Cyclo Caribe used. For open chain compound no primary Pise fix is used. * Secondary Prefix:- Gives information about substituente + connected to Principal Carbon chain. * Poómary Subtix - Give information about unsaturation of Principal Carbon chain, qoy It Saturated >> Primary Suffix -ane If unsaturation - Double bond - -ene . Triple bond = -yne * Secondary Subtix? Give information about functionale group.

D oH FO * For writing IUPAC name to the giver first principal i Carbon chain showd be identified. That Principal carbon chain should contain maximum number of carbon atoms along with the functions group containg carbon. * When a functional groups are there in the molecule one should be selected as functional group depending on order of deereasing Prionty of functional groups. That order of decreasing Prionty is -COOH >-S03H 7 - CooR 7-cod -conty > CN 7-C-H > jc=0 >-0H 7 Hills : Caldehyle) (Ketone) Calcohol) * As per the above ch is selected as functional group. And alcohol is substituent. And the parent carbon chain is selected as shown below, Ho Hero * Numbering is givers as shown starting 1 from aldehyde carbon. * Three Substituents are there. -Calts(ethyl) City and alcohol (-OH).

* The are expressed in Prefix in the alphabetical order along with their positions. * Parent c' chain has 5 carbon atoms. so, word root for this is Pent. And carbon chain is Saturated so isubbik is Lane * Functional grorep is aldehyde, so 2-suttix is -al ** Prefix which includes Substituents is, 2-ethyl-4-hydroxy-3-methyl 'HO Hiso IUPAC Name- y) ?-ethyl-4-hydroxy-3-methyl +pent ané tal |2-ethyl-4-hydroxy-3-methyl entanal] IUPAC name 5-chloro-2,2-dimethylcyclohexane of the compound -1,3-dione *2 Prefix in the above is 5-chloro-2,2-dimethys 1 Prefix is cyclo . Word root is bex , Isuffix is-ane. *20 Subtix is 1,3-dione * a According to 1° Prefix and word root the Compound has 6 membered cyclic Carbon chain,

* E * E As per 2-suffix Ketone group are there at Cal and C-3 positions. .. From a Prefixes chloro is at C-5; and two methyl groups are present at C-2 Carbon. From all the above the structure can be drawn as shoron below. * 2 o 111 City tten otsa