Sodium Iodide → HCID 58194624, compound

HRID 1810605Notes

Reaction equation

Cl[CH2:2][CH2:3][CH2:4][O:5][C:6]1[CH:19]=[CH:18][C:17]2[S:16][C:15]3[C:10](=[CH:11][CH:12]=[CH:13][CH:14]=3)[C:9](=[O:20])[C:8]=2[CH:7]=1.[CH3:21][NH2:22].[I-].[Na+]>C(#N)C.O>[CH3:21][NH:22][CH2:2][CH2:3][CH2:4][O:5][C:6]1[CH:19]=[CH:18][C:17]2[S:16][C:15]3[C:10](=[CH:11][CH:12]=[CH:13][CH:14]=3)[C:9](=[O:20])[C:8]=2[CH:7]=1

Participants

Conditions

Temperature: 60 °C

Procedure

26 g (85 mmol) 2-(3-chloropropoxy)-9H-thioxanthen-9-one is suspended in 140 mL acetonitrile. 66 g (73.2 mL, 0.85 mol) of a 40% solution of methyl amine in water was added and the mixture was heated to 60° C. After four hours, 1.3 g (8.5 mmol) sodium iodide and 20 mL of a 40% solution of methyl amine in water were added and the reaction was allowed to continue for 16 hours at 60° C. The precipitated compounds were isolated by filtration and washed three times with 100 mL acetonitrile. The pooled acetonitrile fractions were evaporated under reduced pressure. The crude 2-(3-methylaminopropoxy)thioxanthen-9-one was crystallized from 200 mL hexane, isolated by filtration and dried. 19 g of 2-(3-methylaminopropoxy)thioxanthen-9-one was isolated. 2-(3-methylaminopropoxy)thioxanthen-9-one was further purified by preparative column chromatography on a Prochrom LC80 column, using Kromasil C18 100A 10 mm as silica and methanol/1M ammonium acetate 68/32 as eluent at a flow rate of 150 mL per minute.

Workup

waitto continue for 16 hours at 60° C
customThe precipitated compounds were isolated by filtration
washwashed three times with 100 mL acetonitrile
customThe pooled acetonitrile fractions were evaporated under reduced pressure
customThe crude 2-(3-methylaminopropoxy)thioxanthen-9-one was crystallized from 200 mL hexane
customisolated by filtration
customdried

Sources & evidence

ORD record: ord-9fcc138faf624b88aaf6c6d97d0c65fe
Source dataset: uspto-grants-2013_01
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08362101B2

Reaction notes

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