Iodine → 6-Chloro-3-[1-(1-methyl-1H-indazol-5-yl)-ethyl]-imidazo[1,2-b]pyridazine

HRID 1959669Notes

Reaction equation

HRID 1959669 reaction equation
[Cl:1][C:2]1[CH:3]=[CH:4][C:5]2[N:6]([C:8]([C:11]([C:14]3[CH:15]=[C:16]4[C:20](=[CH:21][CH:22]=3)[N:19]([CH3:23])[N:18]=[CH:17]4)(O)[CH3:12])=[CH:9][N:10]=2)[N:7]=1.II.O[PH2]=O.ClC1C=CC2N(C(CC3C=C4C(=CC=3)N(C)N=C4)=CN=2)N=1>>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]2[N:6]([C:8]([CH:11]([C:14]3[CH:15]=[C:16]4[C:20](=[CH:21][CH:22]=3)[N:19]([CH3:23])[N:18]=[CH:17]4)[CH3:12])=[CH:9][N:10]=2)[N:7]=1

Participants

5

Reactant 4

HCID 807IodineHCID 4124402Phosphinic AcidHCID 581905301-(6-Chloro-imidazo[1,2-b]pyridazin-3-yl)-1-(1-methyl-1H-indazol-5-yl)-ethanolHCID 581905366-Chloro-3-((1-methyl-1H-indazol-5-yl)methyl)imidazo[1,2-b]pyridazine

Product 1

HCID 581905396-Chloro-3-[1-(1-methyl-1H-indazol-5-yl)-ethyl]-imidazo[1,2-b]pyridazineYield 95.5%

Procedure

The title compound (390.0 mg, 91%) was synthesized from 1-(6-chloro-imidazo[1,2-b]pyridazin-3-yl)-1-(1-methyl-1H-indazol-5-yl)-ethanol (430.0 mg, 1.31 mmol), I2(832.0 mg, 3.28 mmol) and H3PO2(0.72 mL, 6.56 mmol) using the same procedure as described in the synthesis of compound 13.2. 1H-NMR (400 MHz, DMSO-d6) δ ppm 8.18 (d, 1H), 7.95 (s, 1H), 7.83 (s, 1H), 7.55 (m, 2H), 7.36 (d, 1H), 7.28 (d, 1H), 4.70 (q, 1H), 3.99 (s, 3H), 1.74 (d, 3H). LCMS (method A): [MH]+=312, tR=5.49 min.

Sources & evidence

ORD record
ord-01b3cff30ce74cb2b445287767e7ee77
Source dataset
uspto-grants-2013_04
Patent number
US08410264B2

Reaction notes

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