The two amino acids which has two chiral centers need to be found out and the configuration need to be assigned. Concept introduction: Amino acids are compounds with difuntional group, amine and carboxylic acid group. There are about twenty naturally occurring amino acids. Each amino acid has atleast one chiral carbon in it except glycine. A chiral carbon is the carbon which is bonded to four different groups. To find : To find the amino acids that has two chiral centers

Question

Part I. a) Elucidate the structure of compound A using the following information. • mass spectrum: m+ = 102, m/2=57 312=29 • IR spectrum: 1002.5 % TRANSMITTANCE Ngg 50 40 30 20 90 80 70 60 MICRONS 5 8 9 10 12 13 14 15 16 19 1740 cm M 10 0 4000 3600 3200 2800 2400 2000 1800 1600 13 • CNMR 'H -NMR Peak 8 ppm (H) Integration multiplicity a 1.5 (3H) triplet b 1.3 1.5 (3H) triplet C 2.3 1 (2H) quartet d 4.1 1 (2H) quartet & ppm (c) 10 15 28 60 177 (C=0) b) Elucidate the structure of compound B using the following information 13C/DEPT NMR 150.9 MHz IIL 1400 WAVENUMBERS (CM-1) DEPT-90 DEPT-135 85 80 75 70 65 60 55 50 45 40 35 30 25 20 ppm 1200 1000 800 600 400

Answer 1

Question

Definition Definition Class of organic compounds that contain a carboxyl group ( - COOH ) and has a general formula R - COOH or R - CO 2 H , where R refers to the alkyl, alkenyl, aryl, or other groups. They can undergo different chemical reactions, such as acid-base reactions, esterification, and oxidation. These are essential components of living organisms, playing important roles in metabolic processes, signaling, and as pharmaceuticals.

Chapter 25, Problem 43PP

(a)

Interpretation Introduction

Interpretation:

The two amino acids which has two chiral centers need to be found out and the configuration need to be assigned.

Concept introduction:

Amino acids are compounds with difuntional group, amine and carboxylic acid group. There are about twenty naturally occurring amino acids. Each amino acid has atleast one chiral carbon in it except glycine. A chiral carbon is the carbon which is bonded to four different groups.

To find : To find the amino acids that has two chiral centers

(b)

Interpretation Introduction

Interpretation:

The two amino acids which has two chiral centers need to be found out and the configuration need to be assigned.

Concept introduction:

Cahn-Ingold-Prelog convention can be applied to derive the configuration of the chirality center depending upon the priority of the groups attached. The atom which has higher atomic number gets the higher priority followed by the others atoms. After assigning the priority and numbering, if the sequence 1-2-3 is in clockwise rotation the configuration is assigned as “R” and if it is in counterclockwise then it is assigned “S”.

To find : To find the configuration of the two chiral centers in the amino acids possessing two chiral centers

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Part I. a) Elucidate the structure of compound A using the following information. • mass spectrum: m+ = 102, m/2=57 312=29 • IR spectrum: 1002.5 % TRANSMITTANCE Ngg 50 40 30 20 90 80 70 60 MICRONS 5 8 9 10 12 13 14 15 16 19 1740 cm M 10 0 4000 3600 3200 2800 2400 2000 1800 1600 13 • CNMR 'H -NMR Peak 8 ppm (H) Integration multiplicity a 1.5 (3H) triplet b 1.3 1.5 (3H) triplet C 2.3 1 (2H) quartet d 4.1 1 (2H) quartet & ppm (c) 10 15 28 60 177 (C=0) b) Elucidate the structure of compound B using the following information 13C/DEPT NMR 150.9 MHz IIL 1400 WAVENUMBERS (CM-1) DEPT-90 DEPT-135 85 80 75 70 65 60 55 50 45 40 35 30 25 20 ppm 1200 1000 800 600 400

• Part II. a) Elucidate The structure of compound c w/ molecular formula C10 11202 and the following data below: • IR spectra % TRANSMITTANCE 1002.5 90 80 70 60 50 40 30 20 10 0 4000 3600 3200 2800 2400 2000 1800 1600 • Information from 'HAMR MICRONS 8 9 10 11 14 15 16 19 25 1400 WAVENUMBERS (CM-1) 1200 1000 800 600 400 peak 8 ppm Integration multiplicity a 2.1 1.5 (3H) Singlet b 3.6 1 (2H) singlet с 3.8 1.5 (3H) Singlet d 6.8 1(2H) doublet 7.1 1(2H) doublet Information from 13C-nmR Normal carbon 29ppm Dept 135 Dept -90 + NO peak NO peak 50 ppm 55 ppm + NO peak 114 ppm t 126 ppm No peak NO peak 130 ppm t + 159 ppm No peak NO peak 207 ppm по реак NO peak

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Answer 2

Question

Definition Definition Class of organic compounds that contain a carboxyl group ( - COOH ) and has a general formula R - COOH or R - CO 2 H , where R refers to the alkyl, alkenyl, aryl, or other groups. They can undergo different chemical reactions, such as acid-base reactions, esterification, and oxidation. These are essential components of living organisms, playing important roles in metabolic processes, signaling, and as pharmaceuticals.

Chapter 25, Problem 43PP

(a)

Interpretation Introduction

Interpretation:

The two amino acids which has two chiral centers need to be found out and the configuration need to be assigned.

Concept introduction:

Amino acids are compounds with difuntional group, amine and carboxylic acid group. There are about twenty naturally occurring amino acids. Each amino acid has atleast one chiral carbon in it except glycine. A chiral carbon is the carbon which is bonded to four different groups.

To find : To find the amino acids that has two chiral centers

(b)

Interpretation Introduction

Interpretation:

The two amino acids which has two chiral centers need to be found out and the configuration need to be assigned.

Concept introduction:

Cahn-Ingold-Prelog convention can be applied to derive the configuration of the chirality center depending upon the priority of the groups attached. The atom which has higher atomic number gets the higher priority followed by the others atoms. After assigning the priority and numbering, if the sequence 1-2-3 is in clockwise rotation the configuration is assigned as “R” and if it is in counterclockwise then it is assigned “S”.

To find : To find the configuration of the two chiral centers in the amino acids possessing two chiral centers

Expert Solution & Answer

Trending nowThis is a popular solution!

See solution

Check out sample textbook solution

Answer 3

Question

Definition Definition Class of organic compounds that contain a carboxyl group ( - COOH ) and has a general formula R - COOH or R - CO 2 H , where R refers to the alkyl, alkenyl, aryl, or other groups. They can undergo different chemical reactions, such as acid-base reactions, esterification, and oxidation. These are essential components of living organisms, playing important roles in metabolic processes, signaling, and as pharmaceuticals.

Chapter 25, Problem 43PP

(a)

Interpretation Introduction

Interpretation:

The two amino acids which has two chiral centers need to be found out and the configuration need to be assigned.

Concept introduction:

Amino acids are compounds with difuntional group, amine and carboxylic acid group. There are about twenty naturally occurring amino acids. Each amino acid has atleast one chiral carbon in it except glycine. A chiral carbon is the carbon which is bonded to four different groups.

To find : To find the amino acids that has two chiral centers

(b)

Interpretation Introduction

Interpretation:

The two amino acids which has two chiral centers need to be found out and the configuration need to be assigned.

Concept introduction:

Cahn-Ingold-Prelog convention can be applied to derive the configuration of the chirality center depending upon the priority of the groups attached. The atom which has higher atomic number gets the higher priority followed by the others atoms. After assigning the priority and numbering, if the sequence 1-2-3 is in clockwise rotation the configuration is assigned as “R” and if it is in counterclockwise then it is assigned “S”.

To find : To find the configuration of the two chiral centers in the amino acids possessing two chiral centers

Expert Solution & Answer

Trending nowThis is a popular solution!

See solution

Check out sample textbook solution

Answer 4

Question

Definition Definition Class of organic compounds that contain a carboxyl group ( - COOH ) and has a general formula R - COOH or R - CO 2 H , where R refers to the alkyl, alkenyl, aryl, or other groups. They can undergo different chemical reactions, such as acid-base reactions, esterification, and oxidation. These are essential components of living organisms, playing important roles in metabolic processes, signaling, and as pharmaceuticals.

Chapter 25, Problem 43PP

(a)

Interpretation Introduction