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Chapter – 2 Microwave assisted simple and fast…..
1-(2-morpholin-4-yl-2-oxoethyl)-1H-indole-2, 3-dione (DNJ-602)
1. The target compound showed characteristic molecular ion peak.
2. O1-C2 and O1-C6 bond cleavages gave characteristic peak at 262 m/e.
[1]
3. After O1-C2 and O1-C6 bond cleavages, C2-C3 bond cleavage gave
characteristic peak at 246 m/e. [2]
4. After C2-C3 bond cleavage, C5-C6 bond cleavage gave characteristic
peak at 234 m/e. [3]
5. After C5-C6 bond cleavage, C3-N4 bond cleavage and subsequently N4-
C5 bond cleavage gave two characteristic peaks at 218 m/e and 205
m/e respectively. [4] & [5]
6. After C3-N4 and N4-C5 bond cleavages, N4-C7 or C7-O8 bond cleavage
gave characteristic peak at 176 m/e. [6]
7. Afterwards C9-N10 and subsequently C11-C19 and C12-C20 bond
cleavages gave characteristic peak at 121 m/e. [7]
8. N4-C7 bond cleavage in the title compound gave characteristic peak at
189 m/e, which could be the alternative possibility for this fragment. [8]
Department of Chemistry, Saurashtra University, Rajkot – 360 005 93