4-(Tetramethyl-1,3,2-dioxaborolan-2-yl)aniline → HCID 86696548, compound

HRID 1854830Notes

Reaction equation

HRID 1854830 reaction equation
Cl[C:2]1[C:3]([F:22])=[CH:4][N:5]2[C:10]([C:11]=1[CH3:12])=[C:9]([CH:13]1[CH2:15][CH2:14]1)[CH:8]=[C:7]([C:16]([O:18][CH2:19][CH3:20])=[O:17])[C:6]2=[O:21].CC1(C)C(C)(C)OB([C:31]2[CH:37]=[CH:36][C:34]([NH2:35])=[CH:33][CH:32]=2)O1>>[NH2:35][C:34]1[CH:36]=[CH:37][C:31]([C:2]2[C:3]([F:22])=[CH:4][N:5]3[C:10]([C:11]=2[CH3:12])=[C:9]([CH:13]2[CH2:15][CH2:14]2)[CH:8]=[C:7]([C:16]([O:18][CH2:19][CH3:20])=[O:17])[C:6]3=[O:21])=[CH:32][CH:33]=1

Participants

3

Reactant 2

HCID 27346204-(Tetramethyl-1,3,2-dioxaborolan-2-yl)anilineHCID 9927245Ethyl 8-chloro-1-cyclopropyl-7-fluoro-9-methyl-4-oxo-4H-quinolizine-3-carboxylate

Product 1

HCID 86696548HCID 86696548, compoundYield 93.9%

Procedure

Ethyl 8-(4-amino-phenyl)-1-cyclopropyl-7-fluoro-9-methyl-4-oxo-4H-quinolizine-3-carboxylate was prepared according to General Procedure A using ethyl 8-chloro-1-cyclopropyl-7-fluoro-9-methyl-4-oxo-4H-quinolizine-3-carboxylate (500 mg, 1.54 mmol) and 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-aniline (439 mg, 2.00 mmol). Purification by flash silica column chromatography (CH2Cl2:MeOH) (1:0 to 9:1) afforded the title compound as a yellow solid (550 mg, 93%). ESI-MS m/z: 381 (M+H)+.

Workup

  1. customEthyl 8-(4-amino-phenyl)-1-cyclopropyl-7-fluoro-9-methyl-4-oxo-4H-quinolizine-3-carboxylate was prepared
  2. customPurification by flash silica column chromatography (CH2Cl2:MeOH) (1:0 to 9:1)

Sources & evidence

ORD record
ord-f983e28715cc47e48261cc7c125a8a64
Source dataset
uspto-grants-2015_02
Patent number
US08962842B2

Reaction notes

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