N-benzyl-1,2,3,4-tetrahydrocarbazole-3,4-dicarboximide → Diethyl 6-chlorocarbazole-2,3-dicarboxylate

HRID 373992Notes

Reaction equation

HRID 373992 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]2[C:12](=[CH:13][CH:14]=1)[NH:11][C:10]1[CH2:9][CH:8]([C:15]([O:17][CH2:18][CH3:19])=[O:16])[CH:7]([C:20]([O:22][CH2:23][CH3:24])=[O:21])[CH2:6][C:5]2=1.C(N1C(=O)C2C(CCC3NC4C(C=32)=CC=CC=4)C1=O)C1C=CC=CC=1>>[Cl:1][C:2]1[CH:3]=[C:4]2[C:12](=[CH:13][CH:14]=1)[NH:11][C:10]1[CH:9]=[C:8]([C:15]([O:17][CH2:18][CH3:19])=[O:16])[C:7]([C:20]([O:22][CH2:23][CH3:24])=[O:21])=[CH:6][C:5]2=1

Participants

3

Reactant 2

HCID 2865034N-benzyl-1,2,3,4-tetrahydrocarbazole-3,4-dicarboximideHCID 19808827Diethyl 6-chloro-1,2,3,4-tetrahydrocarbazole-2,3-dicarboxylate

Product 1

HCID 19808695Diethyl 6-chlorocarbazole-2,3-dicarboxylate

Procedure

Diethyl 6-chloro-1,2,3,4-tetrahydrocarbazole-2,3-dicarboxylate was subjected instead of the N-benzyl-1,2,3,4-tetrahydrocarbazole-3,4-dicarboximide to the same reaction as in Reference Example 1 (3), to obtain diethyl 6-chlorocarbazole-2,3-dicarboxylate as colorless crystals.

Sources & evidence

ORD record
ord-34e5c3fa75aa4f29972e08035b1faa5c
Source dataset
uspto-grants-1992_11
Patent number
US05166204

Reaction notes

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