1-(2-Bromoethyl)-4-chlorobenzene → HCID 66932159, compound

HRID 2046743Notes

Reaction equation

HRID 2046743 reaction equation
[CH3:1][O:2][C:3](=[O:29])/[CH:4]=[CH:5]/[C:6]1[CH:7]=[C:8]2[C:25](=[CH:26][CH:27]=1)[O:24][C:11]1([CH2:16][CH2:15][N:14]([C:17](OC(C)(C)C)=O)[CH2:13][CH2:12]1)[CH2:10][C:9]2=[O:28].BrC[CH2:32][C:33]1[CH:38]=[CH:37][C:36]([Cl:39])=[CH:35][CH:34]=1>>[CH3:1][O:2][C:3](=[O:29])/[CH:4]=[CH:5]/[C:6]1[CH:7]=[C:8]2[C:25](=[CH:26][CH:27]=1)[O:24][C:11]1([CH2:12][CH2:13][N:14]([CH2:17][CH2:32][C:33]3[CH:38]=[CH:37][C:36]([Cl:39])=[CH:35][CH:34]=3)[CH2:15][CH2:16]1)[CH2:10][C:9]2=[O:28]

Participants

3

Reactant 2

HCID 230291-(2-Bromoethyl)-4-chlorobenzeneHCID 52952087(E)-3-{1'-tert-butoxycarbonyl-4-oxo-spiro[chromane-2,4'-piperidine]-6-yl}-acrylic acid methyl ester2×

Product 1

HCID 66932159HCID 66932159, compoundYield 92.7%

Procedure

(E)-3-{4-Oxo-spiro[chromane-2,4′-piperidine]-6-yl}-acrylic acid methyl ester (169 mg, 0.500 mmol, Intermediate 1, hydrochloride salt) was alkylated using 1-(2-bromo-ethyl)-4-chloro-benzene (0.15 ml, 1.5 mmol) as described in Example 56, Step A, giving (E)-3-{1′-[2-(4-chloro-phenyl)-ethyl]-4-oxo-spiro[chromane-2,4′-piperidine]-6-yl}-acrylic acid methyl ester (204 mg) as a light yellow solid.

Sources & evidence

ORD record
ord-1e400f05881449eca2788f9be2918ac2
Source dataset
uspto-grants-2013_11
Patent number
US08592444B2

Reaction notes

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