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Chapter – 3 Preparation of small library…..
3.2.4 PREPARATION OF 2-AMINO BENZOTHIAZOLE
R
Reagents / Reaction Condition (d): KSCN, Br2, Glacial acetic acid / 0-5°C.
3.2.5 PREPARATION OF 3-((UN) SUBSTITUTED 1, 3-BENZOTHIAZOL-2-
YL IMINO)-1, 3-DIHYDRO-2H-INDOL-2-ONE
R
Reagents / Reaction Condition (e): Isatin, Ethanol, Con. H2SO4 / Reflux, 4
hours.
3.2.6 SCHEME - 1
R 1
N
N
R 2
O
N
S
NH 2
O
NH 2
f
d
e
Department of Chemistry, Saurashtra University, Rajkot – 360 005 150
R
R 1
N
H
N
N
N
R 2
N
N
O
S
O
N
S
NH
O
NH 2
C 3 H 7
R
C 3 H 7