The IUPAC name of the given compound has to be chosen from the given options. Concept Introduction: Any organic molecule can be named by using certain rules given by IUPAC (International Union for Pure and applied chemistry). IUPAC name consists of three parts in major namely Prefix suffix and root word. Prefix represents the substituent present in the molecule and its position in the root name. Suffix denotes the presence of functional group if any in the molecule. It can be an alkene , alkyne , alcohol, carboxylic acid , alcohol etc. Root word represents the longest continuous carbon skeleton of the organic molecule. IUPAC rules for naming thioether: ✓ The base name is found from the longest carbon chain present in thioether. ✓ The suffix –thio has to be added in order to obtain the alkylthio group name. For example, ethyl becomes as ethylthio, methyl becomes as methylthio etc. ✓ Alkylthio name has to be placed first with the number (carbon atom to which the alkykthio group is attached) followed by the base name.

Question

bre The reaction sequence shown in Scheme 5 demonstrates the synthesis of a substituted benzene derivative Q. wolsd works 2 NH2 NaNO2, HCI (apexe) 13× (1 HNO3, H2SO4 C6H5CIN2 0°C HOTE CHINO₂ N O *O₂H ( PO Q Я Scheme 5 2 bag abouoqmics to sounde odi WEIC (i) Draw the structure of intermediate O. [2 marks] to noitsmot od: tot meinedogm, noit so oft listsb ni zaupaib bas wa (ii) Draw the mechanism for the transformation of aniline N to intermediate O. Spoilage (b) [6 marks] (iii) Identify the reagent X used to convert compound O to the iodinated compound [tom E P. vueimado oilovonsa ni moitos nolisbnolov ayd toes ai tedw nisiqx (iv) Identify the possible structures of compound Q. [2 marks] [2 marks] [shom 2] (v) bus noires goiribbeolovo xnivollot adj to subora sidab Draw the mechanism for the transformation of intermediate P to compound Q. [5 marks] vi (vi) Account for the regiochemical outcome observed in the reaction forming compound Q. [3 marks]

Answer 1

Question

Chapter 14.21, Problem 2QQ

Interpretation Introduction

Interpretation:

The IUPAC name of the given compound has to be chosen from the given options.

Concept Introduction:

Any organic molecule can be named by using certain rules given by IUPAC (International Union for Pure and applied chemistry). IUPAC name consists of three parts in major namely Prefix suffix and root word.

Prefix represents the substituent present in the molecule and its position in the root name.

Suffix denotes the presence of functional group if any in the molecule. It can be an alkene, alkyne, alcohol, carboxylic acid, alcohol etc.

Root word represents the longest continuous carbon skeleton of the organic molecule.

IUPAC rules for naming thioether:

✓ The base name is found from the longest carbon chain present in thioether.

✓ The suffix –thio has to be added in order to obtain the alkylthio group name. For example, ethyl becomes as ethylthio, methyl becomes as methylthio etc.

✓ Alkylthio name has to be placed first with the number (carbon atom to which the alkykthio group is attached) followed by the base name.

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bre The reaction sequence shown in Scheme 5 demonstrates the synthesis of a substituted benzene derivative Q. wolsd works 2 NH2 NaNO2, HCI (apexe) 13× (1 HNO3, H2SO4 C6H5CIN2 0°C HOTE CHINO₂ N O *O₂H ( PO Q Я Scheme 5 2 bag abouoqmics to sounde odi WEIC (i) Draw the structure of intermediate O. [2 marks] to noitsmot od: tot meinedogm, noit so oft listsb ni zaupaib bas wa (ii) Draw the mechanism for the transformation of aniline N to intermediate O. Spoilage (b) [6 marks] (iii) Identify the reagent X used to convert compound O to the iodinated compound [tom E P. vueimado oilovonsa ni moitos nolisbnolov ayd toes ai tedw nisiqx (iv) Identify the possible structures of compound Q. [2 marks] [2 marks] [shom 2] (v) bus noires goiribbeolovo xnivollot adj to subora sidab Draw the mechanism for the transformation of intermediate P to compound Q. [5 marks] vi (vi) Account for the regiochemical outcome observed in the reaction forming compound Q. [3 marks]

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