Diazonium salts blend .


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Diazonium salts synthesis. benzenediazonium ion. Diazonium salts, reactions Coupling to form azo dyes Replacements a) -Br, -Cl, -CN b) -I c) -F d) -OH e) -H f) etc. coupling to form azo dyes. Sandmeyer. Ar-N 2 + + CuCl  Ar-Cl + N 2
Transcripts
Slide 1

Diazonium salts amalgamation benzenediazonium particle

Slide 2

Diazonium salts, responses Coupling to frame azo colors Replacements a) - Br, - Cl, - CN b) - I c) - F d) - OH e) - H f) and so on

Slide 3

coupling to shape azo colors

Slide 4

Sandmeyer Ar-N 2 + CuCl  Ar-Cl + N 2 Ar-N 2 + CuBr  Ar-Br + N 2 Ar-N 2 + CuCN  Ar-CN + N 2

Slide 5

Ar-N 2 + KI  Ar-I + N 2 Ar-N 2 + HBF 4  Ar-F + N 2 Ar-N 2 + H 2 O, H +  Ar-OH + N 2 Ar-N 2 + H 3 PO2  Ar-H + N 2

Slide 10

p - bromotoluene

Slide 12

In unions, you may no longer accept that you can isolate an immaculate para isomer from an ortho/para blend. Either turn upward the physical properties of the mixes or depend on experience picked up in the homework as to which blends are distinguishable and which ones are most certainly not!

Slide 13

m - bromotoluene

Slide 14

m - bromophenol

Slide 15

p - toluic corrosive

Slide 16

1,2,3-tribromobenzene

Slide 17

1,3,5-tribromobenzene

Slide 18

Spectroscopy of amines Infrared: N—H extend 3200 – 3500 cm - 1 1 o regularly two groups 2 o one band 3 o no groups N—H twist 1 o solid groups 650-900 cm - 1 (expansive) and 1560-1650 cm - 1 nmr: N—H 1-5 ppm (frequently wide and low)

Slide 19

p - toluidine N—H extend N—H twist

Slide 20

p - ethylaniline d c b a

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