Potassium Iodide → HCID 10665070, compound

HRID 1827899Notes

Reaction equation

[OH:1][C:2]1[C:15]2[C:14](=[O:16])[C:13]3[CH:12]=[C:11]4[CH:17]=[CH:18][CH:19]=[CH:20][C:10]4=[CH:9][C:8]=3[NH:7][C:6]=2[CH:5]=[C:4]([OH:21])[CH:3]=1.C(=O)([O-])[O-].[K+].[K+].[I-].[K+].Cl[C:31]([CH3:35])([CH3:34])[C:32]#[CH:33]>CN(C)C=O>[OH:1][C:2]1[CH:3]=[C:4]2[O:21][C:31]([CH3:35])([CH3:34])[CH:32]=[CH:33][C:5]2=[C:6]2[C:15]=1[C:14](=[O:16])[C:13]1[CH:12]=[C:11]3[CH:17]=[CH:18][CH:19]=[CH:20][C:10]3=[CH:9][C:8]=1[NH:7]2

Participants

Conditions

Temperature: 65 °C

Procedure

To a solution of 2 g of the product of Step A in 50 ml of anhydrous dimethylformamide, under an inert atmosphere, there are added 2 g of anhydrous potassium carbonate. After stirring for 15 minutes at 65° C., 2.4 g of anhydrous potassium iodide and 4.4 g of 3-chloro-3-methyl-1-butyne are added, and the reaction mixture is held at 65° C. for 24 hours and then at 130° C. for 1 hour. After cooling, the solution is hydrolysed and then extracted with dichloromethane. The combined organic phases are washed with water and then with 1M potassium hydroxide solution, dried over sodium sulphate and then evaporated. After chromatography over silica gel (cyclohexane/acetone: 90/10), 1.10 g of the expected product are isolated.

Workup

waitthe reaction mixture is held at 65° C. for 24 hours
waitat 130° C. for 1 hour
temperatureAfter cooling
extractionextracted with dichloromethane
washThe combined organic phases are washed with water
dry with materialwith 1M potassium hydroxide solution, dried over sodium sulphate
customevaporated

Sources & evidence

ORD record: ord-016fffd0c4a0446997a25713abaffd1b
Source dataset: uspto-grants-2006_06
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07056929B2

Reaction notes

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