1,3-Dihydro-1,3-dioxo-2H-isoindole-2-butanal → 2-[4-(4-Methoxy-5,6,7,8-tetrahydroquinolin-8-ylamino)-butyl]-isoindole-1,3-dione

HRID 899808

Reaction equation

HRID 899808 reaction equation
[NH2:1][CH:2]1[C:11]2[N:10]=[CH:9][CH:8]=[C:7]([O:12][CH3:13])[C:6]=2[CH2:5][CH2:4][CH2:3]1.[O:14]=[C:15]1[C:23]2[C:18](=[CH:19][CH:20]=[CH:21][CH:22]=2)[C:17](=[O:24])[N:16]1[CH2:25][CH2:26][CH2:27][CH:28]=O.[BH-](OC(C)=O)(OC(C)=O)OC(C)=O.[Na+]>C(Cl)Cl>[CH3:13][O:12][C:7]1[C:6]2[CH2:5][CH2:4][CH2:3][CH:2]([NH:1][CH2:28][CH2:27][CH2:26][CH2:25][N:16]3[C:17](=[O:24])[C:18]4[C:23](=[CH:22][CH:21]=[CH:20][CH:19]=4)[C:15]3=[O:14])[C:11]=2[N:10]=[CH:9][CH:8]=1

Participants

5

Reactant 3

HCID 771501,3-Dihydro-1,3-dioxo-2H-isoindole-2-butanalHCID 5049666Sodium triacetoxyborohydrideHCID 220186174-Methoxy-5,6,7,8-tetrahydroquinolin-8-amine

Product 1

HCID 691787902-[4-(4-Methoxy-5,6,7,8-tetrahydroquinolin-8-ylamino)-butyl]-isoindole-1,3-dioneYield 54.4%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

Using General Procedure B: Reaction of 8-amino-4-methoxy-5,6,7,8-tetrahydroquinoline (0.297 g, 1.67 mmol) and 4-(1,3-Dioxo-1,3-dihydro-isoindol-2-yl)-butyraldehyde (0.371, 1.71 mmol) with NaBH(OAc)3 (0.493 g, 2.33 mmol) in CH2Cl2 (8 mL) for 60 minutes followed by purification of the crude material by column chromatography on silica gel (20:1 CH2Cl—2—CH3OH) provided 0.345 g (54%) of 2-[4-(4-Methoxy-5,6,7,8-tetrahydro-quinolin-8-ylamino)-butyl]-isoindole-1,3-dione as an off-white solid.

Workup

  1. customfollowed by purification of the crude material by column chromatography on silica gel (20:1 CH2Cl—2—CH3OH)

Sources & evidence

ORD record
ord-1dbd991afb534cdaa1e32efa1e4d0f23
Source dataset
uspto-grants-2008_04
Patent number
US07354934B2

Linked notes

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