2,3-Dichlorobenzaldehyde → HCID 13558221, compound
Reaction equation
[Cl:1][C:2]1[C:9]([Cl:10])=[CH:8][CH:7]=[CH:6][C:3]=1[CH:4]=O.[C:11]([O:17][CH2:18][CH2:19][N:20]1[CH2:25][CH2:24][CH:23]([CH:26]([C:33]2[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=2)[C:27]2[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=2)[CH2:22][CH2:21]1)(=[O:16])[CH2:12][C:13]([CH3:15])=O.[NH2:39]/[C:40](/[CH3:47])=[CH:41]\[C:42]([O:44][CH2:45][CH3:46])=[O:43]>CC(O)C>[Cl:1][C:2]1[C:9]([Cl:10])=[CH:8][CH:7]=[CH:6][C:3]=1[CH:4]1[C:41]([C:42]([O:44][CH2:45][CH3:46])=[O:43])=[C:40]([CH3:47])[NH:39][C:13]([CH3:15])=[C:12]1[C:11]([O:17][CH2:18][CH2:19][N:20]1[CH2:21][CH2:22][CH:23]([CH:26]([C:33]2[CH:34]=[CH:35][CH:36]=[CH:37][CH:38]=2)[C:27]2[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=2)[CH2:24][CH2:25]1)=[O:16]Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
A mixture of 2,3-dichlorobenzaldehyde (0.615 g), 2-(4-diphenylmethylpiperidino)ethyl acetoacetate (1.30 g), ethyl 3-aminocrotonate (0.450 g) and 2-propanol (10 ml) was treated in the same manner as Example 13 to give 2-(4-diphenylmethylpiperidino)ethyl ethyl 4-(2,3-dichlorophenyl)-1,4-dihydro-2,6-dimethyl-3,5-pyridinedicarboxylate as a light-yellow powder. Yield 0.272 g (11.9%). m.p. 81°-85° C. (sintering).
Workup
- additionwas treated in the same manner as Example 13
Sources & evidence
- ORD record
- ord-b8d5e74edf494392a20f7c7f604fc78f
- Source dataset
- uspto-grants-1986_07
- Patent number
- US04603135
Reaction notes
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