Iodine → 4-(5-Chloro-2-iodothiazolo[5,4-d]pyrimidin-7-yl)morpholine

HRID 1365781Notes

Reaction equation

[Cl:1][C:2]1[N:3]=[C:4]([N:11]2[CH2:16][CH2:15][O:14][CH2:13][CH2:12]2)[C:5]2[N:10]=[CH:9][S:8][C:6]=2[N:7]=1.C([Li])CCC.[I:22]I>C1COCC1>[Cl:1][C:2]1[N:3]=[C:4]([N:11]2[CH2:12][CH2:13][O:14][CH2:15][CH2:16]2)[C:5]2[N:10]=[C:9]([I:22])[S:8][C:6]=2[N:7]=1

Participants

Conditions

Temperature: -78 °C

Procedure

To a solution of 4-(5-chlorothiazolo[5,4-d]pyrimidin-7-yl)morpholine 14 dissolved in THF at −78° C. was added 1.6M solution of n-butyllithium in hexanes). The reaction mixture was stirred at −78° C. for 30 minutes. A solution of iodine in THF was added and reaction mixture was allowed to slowly warm up to room temperature and stirred for 45 minutes. The reaction mixture was quenched with saturated aq. Na2S2O3, and extracted with dichloromethane. The combined organic layers were dried (Na2SO4) and concentrated. The crude reaction mixture was purified by flash chromatography to yield 4-(5-chloro-2-iodothiazolo[5,4-d]pyrimidin-7-yl)morpholine 18.

Workup

customreaction mixture
temperatureto slowly warm up to room temperature
stirringstirred for 45 minutes
customThe reaction mixture was quenched with saturated aq. Na2S2O3
extractionextracted with dichloromethane
dry with materialThe combined organic layers were dried (Na2SO4)
concentrationconcentrated
customThe crude reaction mixture
customwas purified by flash chromatography

Sources & evidence

ORD record: ord-9d4b888d482e4e0bab634316bb35d1ed
Source dataset: uspto-grants-2011_02
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07893059B2

Reaction notes

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