Triethylamine → 2-(4-{1-[3-(Trifluoromethyl)[1,2,4]triazolo[4,3-b]pyridazin-6-yl]piperidin-4-yl}phenoxy)ethyl methanesulfonate

HRID 2381100Notes

Reaction equation

[CH3:1][S:2](Cl)(=[O:4])=[O:3].[F:6][C:7]([F:34])([F:33])[C:8]1[N:12]2[N:13]=[C:14]([N:17]3[CH2:22][CH2:21][CH:20]([C:23]4[CH:32]=[CH:31][C:26]([O:27][CH2:28][CH2:29][OH:30])=[CH:25][CH:24]=4)[CH2:19][CH2:18]3)[CH:15]=[CH:16][C:11]2=[N:10][N:9]=1.C(N(CC)CC)C>C(Cl)Cl>[CH3:1][S:2]([O:30][CH2:29][CH2:28][O:27][C:26]1[CH:31]=[CH:32][C:23]([CH:20]2[CH2:21][CH2:22][N:17]([C:14]3[CH:15]=[CH:16][C:11]4[N:12]([C:8]([C:7]([F:6])([F:33])[F:34])=[N:9][N:10]=4)[N:13]=3)[CH2:18][CH2:19]2)=[CH:24][CH:25]=1)(=[O:4])=[O:3]

Participants

Conditions

Temperature: 0 °C

Procedure

A solution of methanesulfonyl chloride (20.37 mL, 262.16 mmol) in DCM (300 mL) was is added to 2-(4-{1-[3-(trifluoromethyl)[1,2,4]triazolo[4,3-b]pyridazin-6-yl]piperidin-4-yl}phenoxy)ethanol (89 g, 218.46 mmol) and triethylamine (60.9 mL, 436.93 mmol) in DCM (900 mL) at 0° C. over a period of 30 minutes under nitrogen. The resulting solution was stirred at 0° C. for 1 hour. The reaction mixture was diluted with DCM (1 L), and washed with water (2 L). The organic layer was dried over MgSO4, filtered and evaporated to afford 2-(4-{1-[3-(trifluoromethyl)[1,2,4]triazolo[4,3-b]pyridazin-6-yl]piperidin-4-yl}phenoxy)ethyl methanesulfonate (104 g, 98%) as a solid.

Workup

washwashed with water (2 L)
dry with materialThe organic layer was dried over MgSO4
filtrationfiltered
customevaporated

Sources & evidence

ORD record: ord-651af72bb743481084f34adf41355979
Source dataset: uspto-grants-2012_09
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08258140B2

Reaction notes

Loading…