tert-Butanol → N-[6-(1,4-dioxaspiro[4.5]decan-7-en-8-yl)-5-methylpyridin-3-yl]-5-methyl-1-[4-(trifluoromethyl)phenyl]-1H-pyrazole-4-carboxamide

HRID 1748645Notes

Reaction equation

HRID 1748645 reaction equation
[CH3:1][C:2]1[N:6]([C:7]2[CH:12]=[CH:11][C:10]([C:13]([F:16])([F:15])[F:14])=[CH:9][CH:8]=2)[N:5]=[CH:4][C:3]=1[C:17]([NH2:19])=[O:18].Br[C:21]1[CH:22]=[C:23]([CH3:37])[C:24]([C:27]2[CH2:36][CH2:35][C:30]3([O:34][CH2:33][CH2:32][O:31]3)[CH2:29][CH:28]=2)=[N:25][CH:26]=1.P([O-])([O-])([O-])=O.[Na+].[Na+].[Na+].C(O)(C)(C)C>C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd].C(P(C(C)(C)C)C1C(C)=C(C)C(C)=C(C)C=1C1C(C(C)C)=CC(C(C)C)=CC=1C(C)C)(C)(C)C.O>[O:31]1[C:30]2([CH2:35][CH2:36][C:27]([C:24]3[N:25]=[CH:26][C:21]([NH:19][C:17]([C:3]4[CH:4]=[N:5][N:6]([C:7]5[CH:12]=[CH:11][C:10]([C:13]([F:16])([F:14])[F:15])=[CH:9][CH:8]=5)[C:2]=4[CH3:1])=[O:18])=[CH:22][C:23]=3[CH3:37])=[CH:28][CH2:29]2)[O:34][CH2:33][CH2:32]1

Participants

8

Reactant 4

HCID 6386tert-ButanolHCID 24243Trisodium PhosphateHCID 178227615-methyl-1-[4-(trifluoromethyl)phenyl]-1H-pyrazole-4-carboxamideHCID 866924755-Bromo-2-(1,4-dioxaspiro[4.5]dec-7-en-8-yl)-3-methylpyridine

Product 1

HCID 86692585N-[6-(1,4-dioxaspiro[4.5]decan-7-en-8-yl)-5-methylpyridin-3-yl]-5-methyl-1-[4-(trifluoromethyl)phenyl]-1H-pyrazole-4-carboxamideYield 85.9%

Reagents, catalysts & solvents 3

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalystHCID 11953610Di-tert-butyl[3,4,5,6-tetramethyl-2',4',6'-tris(propan-2-yl)-[1,1'-biphenyl]-2-yl]phosphaneCatalystHCID 962WaterSolvent

Conditions

Temperature
110 °C

Procedure

A suspension of 5-methyl-1-[4-(trifluoromethyl)phenyl]-1H-pyrazole-4-carboxamide (538 mg), 5-bromo-2-(1,4-dioxaspiro[4.5]decan-7-en-8-yl)-3-methylpyridine (620 mg) described in Reference Example 105, tris(dibenzylideneacetone)dipalladium (0) (18 mg), 2-di-tert-butylphosphino-3,4,5,6-tetramethyl-2′,4′,6′-triisopropylbiphenyl (48 mg), trisodium phosphate (509 mg) and tert-butanol (10 ml) was stirred at 110° C. After the reaction, the reaction solution was left stand, water was added and extracted with chloroform. The organic layer was dried over anhydrous sodium sulfate and concentrated. The resulting residue was purified with a silica gel column chromatography (chloroform/methanol) to give N-[6-(1,4-dioxaspiro[4.5]decan-7-en-8-yl)-5-methylpyridin-3-yl]-5-methyl-1-[4-(trifluoromethyl)-phenyl]-1H-pyrazole-4-carboxamide (856 mg) as a pale yellow solid.

Workup

  1. customAfter the reaction
  2. additionwas added
  3. extractionextracted with chloroform
  4. dry with materialThe organic layer was dried over anhydrous sodium sulfate
  5. concentrationconcentrated
  6. customThe resulting residue was purified with a silica gel column chromatography (chloroform/methanol)

Sources & evidence

ORD record
ord-79d12d26ee9a457cbc45ca00d8db1063
Source dataset
uspto-grants-2015_10
Patent number
US09150555B2

Reaction notes

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