4-(Tri-n-butylstannyl)pyridine → HCID 57897935, compound

HRID 1693532Notes

Reaction equation

[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[C:16](=[O:17])[C:15]3[N:14]=[CH:13][N:12]([C:18]4[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=4)[C:11]=3[N:10]=[C:9]2[C:24]2[CH:29]=[CH:28][C:27](I)=[CH:26][CH:25]=2)=[CH:4][CH:3]=1.C([Sn](CCCC)(CCCC)[C:36]1[CH:41]=[CH:40][N:39]=[CH:38][CH:37]=1)CCC>[Pd].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([N:8]2[C:16](=[O:17])[C:15]3[N:14]=[CH:13][N:12]([C:18]4[CH:23]=[CH:22][CH:21]=[CH:20][CH:19]=4)[C:11]=3[N:10]=[C:9]2[C:24]2[CH:29]=[CH:28][C:27]([C:36]3[CH:41]=[CH:40][N:39]=[CH:38][CH:37]=3)=[CH:26][CH:25]=2)=[CH:4][CH:3]=1

Participants

Conditions

Temperature: 100 °C

Procedure

A dry flask charged with 1-(4-chloro-phenyl)-2-(4-iodo-phenyl)-9-phenyl-1,9-dihydro-purin-6-one (20 mg, 0.038 mmol), 4-tributylstannylpyridine (14 mg, 0.038 mmol) and tetrakis(triphenylphosphine) palladium (4.4 mg, 0.0038 mmol) is heated at 100° C. overnight. Filtration and concentration followed by purification gives the desired product. 1H NMR (methanol-d4) δ(ppm) 8.69 (d, 2H), 8.49 (s, 1H), 8.04 (d, 2H), 7.81 (m, 4H), 7.60 (m, 4H), 7.51 (m, 1H), 7.35 (m, 4H); HPLC-MS calculated for C28H18ClN5O (M+H+): 476.2. Found 476.2.

Workup

filtrationFiltration and concentration
customfollowed by purification

Sources & evidence

ORD record: ord-b323a976c2de4e79b13d8916dd42e1d2
Source dataset: uspto-grants-2012_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08158634B2

Reaction notes

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