Oxalyl chloride → N-[(S)-2-(3,4-Dichlorophenyl)-4-oxobutyl]-N-methyl-2-methoxy-3-cyano-1-naphthamide

HRID 2301281Notes

Reaction equation

HRID 2301281 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([C@H:9]([CH2:29][CH2:30][OH:31])[CH2:10][N:11]([CH3:28])[C:12]([C:14]2[C:23]3[C:18](=[CH:19][CH:20]=[CH:21][CH:22]=3)[CH:17]=[C:16]([C:24]#[N:25])[C:15]=2[O:26][CH3:27])=[O:13])[CH:5]=[CH:6][C:7]=1[Cl:8].C(Cl)(=O)C(Cl)=O>CS(C)=O>[Cl:1][C:2]1[CH:3]=[C:4]([C@H:9]([CH2:29][CH:30]=[O:31])[CH2:10][N:11]([CH3:28])[C:12]([C:14]2[C:23]3[C:18](=[CH:19][CH:20]=[CH:21][CH:22]=3)[CH:17]=[C:16]([C:24]#[N:25])[C:15]=2[O:26][CH3:27])=[O:13])[CH:5]=[CH:6][C:7]=1[Cl:8]

Participants

4

Reactant 2

HCID 65578Oxalyl chlorideHCID 11004983N-[2-(S)-(3,4-dichlorophenyl)-4-hydroxybutyl]-N-methyl-3cyano-2methoxy-1-naphthamide

Product 1

HCID 11091697N-[(S)-2-(3,4-Dichlorophenyl)-4-oxobutyl]-N-methyl-2-methoxy-3-cyano-1-naphthamide

Reagents, catalysts & solvents 1

HCID 679Dimethyl SulfoxideSolvent

Procedure

The alcohol from (a) was oxidized using oxalyl chloride and DMSO under standard Swern conditions to afford the aldehyde [1H NMR (300 MHz, DMSO-d6) δ9.70-9.64 (m), 8.67-8.57 (m), 8.07-7.97 (m), 7.80 (s), 7.72-7.55 (m), 7.52-7.48 (m), 7.40-7.33 (m), 7.12-7.10 (d), 7.04-7.02 (d), 6.87-6.83 (m), 6.37-6.29 (d), 4.53-4.44 (t), 4.11-4.00 (m), 3.94 (s), 3.92 (s), 3.91-3.73 (m), 3.71 (s), 3.45-3.38 (m), 3.33 (s), 3.14 (s), 2.97-2.95 (d), 2.63 (s), 2.60 (s); MS APCI, m/z=455 (M+)].

Sources & evidence

ORD record
ord-aec10826c8bf4e368c7d57ebb74c18d8
Source dataset
uspto-grants-2002_12
Patent number
US06500818B1

Reaction notes

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