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

HRID 456160Notes

Reaction equation

HRID 456160 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=3F)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 581906096-Chloro-3-((6-fluoro-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 69.2. 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-5b5ffa7d0e6b4af4a578ff7f9f2ab420
Source dataset
uspto-grants-2013_07
Patent number
US08497368B2

Reaction notes

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