How do I analyse whether product isoquinoline has been synthesised through IR spectrum? 907아H3CO.6아NH2 CrH3co5아O2N94아C1,H19CIN,0,Mol. Wt.: 350.796763아2아380036003400320030002800260024002200200018001600140012001000800Wavenumber%Transmitance3018-2918-2727-26202533-24881518-14531416-3481303-11191058-1018-914863609761-732-689 The ExperimentIn this experiment, isoquinoline 9 will be synthesised, according to Scheme 4. The Schiff base 8 isprepared by the condensation of 3,4-dimethylphenethylamine 6 with 3-nitrobenzaldehyde 7. Thecyclisation of the Schiff base 8, under strong acid conditions, would provide the Hcl salt of isoquinoline9.H3CO.H,CO.H3COH,CONH2ethanolcon. HCINH2 CrH3COH3CO40°CrefluxH.O,NO,NSchiff base 87NO,Scheme 4

IR Spectrum helps to identify different functional groups. Specific functional group give particular…

70- H3CO. NH2 Cr H3Co C,H19CIN,O, Mol. Wt. 350.79676 3800 3600 3400 3200 3000 2800 2600 2400 2200 2000 1800 1600 1400 1200 1000 800 Wavenumber 3018- 2918- 2727 oze 2488 1518 T416 1119- 1018- 196 600 192

70- H3CO. NH2 Cr H3Co C,H19CIN,O, Mol. Wt. 350.79676 3800 3600 3400 3200 3000 2800 2600 2400 2200 2000 1800 1600 1400 1200 1000 800 Wavenumber 3018- 2918- 2727 oze 2488 1518 T416 1119- 1018- 196 600 192

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter7: Components Of Optical Instruments

Section: Chapter Questions

Problem 7.8QAP

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Question

How do I analyse whether product isoquinoline has been synthesised through IR spectrum?

90
7아
H3CO.
6아
NH2 Cr
H3co
5아
O2N
9
4아
C1,H19CIN,0,
Mol. Wt.: 350.79676
3아
2아
3800
3600
3400
3200
3000
2800
2600
2400
2200
2000
1800
1600
1400
1200
1000
800
Wavenumber
%Transmitance
3018-
2918-
2727-
2620
2533-
2488
1518-
1453
1416-
348
1303-
1119
1058-
1018-
914
863
609
761-
732-
689

The Experiment
In this experiment, isoquinoline 9 will be synthesised, according to Scheme 4. The Schiff base 8 is
prepared by the condensation of 3,4-dimethylphenethylamine 6 with 3-nitrobenzaldehyde 7. The
cyclisation of the Schiff base 8, under strong acid conditions, would provide the Hcl salt of isoquinoline
9.
H3CO.
H,CO.
H3CO
H,CO
NH2
ethanol
con. HCI
NH2 Cr
H3CO
H3CO
40°C
reflux
H.
O,N
O,N
Schiff base 8
7
NO,
Scheme 4

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