The two isomers of Be ( tFa ) 2 and Cu ( tFa ) 2 are to be drawn and the type of isomerism shown by them is to be stated. Concept introduction: Organic compounds which have similar chemical formula but different structures, i.e., the atoms are in a different spatial arrangement, they are known as structural isomers. Cis and Trans isomers are also structural or geometrical isomers. Optical isomers are those which have non super imposable mirror images. To determine: The two isomers of Be ( tFa ) 2 and the type of isomerism shown by them.

Question

4. a) Give a suitable rationale for the following cyclization, stating the type of process involved (e.g. 9-endo-dig), clearly showing the mechanistic details at each step. H CO₂Me 1) NaOMe 2) H3O® CO₂Me

Answer 1

Question

Chapter 20, Problem 76AE

(a)

Interpretation Introduction

Interpretation: The two isomers of Be(tFa)2 and Cu(tFa)2 are to be drawn and the type of isomerism shown by them is to be stated.

Concept introduction: Organic compounds which have similar chemical formula but different structures, i.e., the atoms are in a different spatial arrangement, they are known as structural isomers. Cis and Trans isomers are also structural or geometrical isomers. Optical isomers are those which have non super imposable mirror images.

To determine: The two isomers of Be(tFa)2 and the type of isomerism shown by them.

(b)

Interpretation Introduction

Interpretation: The two isomers of Be(tFa)2 and Cu(tFa)2 are to be drawn and the type of isomerism shown by them is to be stated.

Concept introduction: Organic compounds which have similar chemical formula but different structures, i.e., the atoms are in a different spatial arrangement, they are known as structural isomers. Cis and Trans isomers are also structural or geometrical isomers. Optical isomers are those which have non super imposable mirror images.

To determine: The two isomers of Cu(tFa)2 and the type of isomerism shown by them.

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