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Tri-tert-butylphosphine tetrafluoroborate → methyl 7-[2-((Z)-3-diethylaminoprop-1-enyl)-4-fluorobenzenesulfonylamino]-4H-5-oxa-3,9b-diazacyclopenta[a]naphthalene-6-carboxylate

HRID 595119
ノート
印刷プレビュー

反応式

HRID 595119 の反応式
Br[C:2]1[CH:7]=[C:6]([F:8])[CH:5]=[CH:4][C:3]=1[S:9]([NH:12][C:13]1[CH:22]=[CH:21][C:20]2[N:19]3[CH:23]=[CH:24][N:25]=[C:18]3[CH2:17][O:16][C:15]=2[C:14]=1[C:26]([O:28][CH3:29])=[O:27])(=[O:11])=[O:10].[CH2:30]([N:32]([CH2:49][CH3:50])[CH2:33]/[CH:34]=[CH:35]\[Sn](CCCC)(CCCC)CCCC)[CH3:31].F[B-](F)(F)F.C([PH+](C(C)(C)C)C(C)(C)C)(C)(C)C>O1CCOCC1.CS(C)=O.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]>[CH2:30]([N:32]([CH2:49][CH3:50])[CH2:33]/[CH:34]=[CH:35]\[C:2]1[CH:7]=[C:6]([F:8])[CH:5]=[CH:4][C:3]=1[S:9]([NH:12][C:13]1[CH:22]=[CH:21][C:20]2[N:19]3[CH:23]=[CH:24][N:25]=[C:18]3[CH2:17][O:16][C:15]=2[C:14]=1[C:26]([O:28][CH3:29])=[O:27])(=[O:11])=[O:10])[CH3:31]
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

7

反応物 3

HCID 2734635Tri-tert-butylphosphine tetrafluoroborateHCID 70983693methyl 7-(2-bromo-4-fluorobenzenesulfonylamino)-4H-5-oxa-3,9b-diazacyclopenta[a]naphthalene-6-carboxylate2 回HCID 86684726N,N-diethyl-N-((Z)-1-tributylstannanylprop-1-en-3-yl)amine2 回

生成物 1

HCID 86712815methyl 7-[2-((Z)-3-diethylaminoprop-1-enyl)-4-fluorobenzenesulfonylamino]-4H-5-oxa-3,9b-diazacyclopenta[a]naphthalene-6-carboxylate
収率 24.8%

試薬・触媒・溶媒 3

HCID 9811564Bis(dibenzylideneacetone)palladium触媒HCID 679Dimethyl Sulfoxide溶媒HCID 312751,4-Dioxane溶媒

反応条件

温度
95 °C

実験手順

A mixture of methyl 7-(2-bromo-4-fluorobenzenesulfonylamino)-4H-5-oxa-3,9b-diazacyclopenta[a]naphthalene-6-carboxylate (Intermediate 25, 0.598 g), N,N-diethyl-N—((Z)-1-tributylstannanylprop-1-en-3-yl)-amine (Intermediate 3, 0.997 g), tris-(dibenzylideneacetone)dipalladium (0) (0.057 g) and tri-tert-butylphosphonium tetrafluoroborate (0.036 g) in dioxane (15 mL) and DMSO (1.5 mL) was de-gassed and purged with nitrogen then heated to 95° C. under an atmosphere of nitrogen for 2 hours. Further amounts of tris-(dibenzylideneacetone)dipalladium (0) (0.057 g) and tri-tert-butylphosphonium tetrafluoroborate (0.036 g) were added and the mixture stirred and heated at 95° C. for 2 hours. Further amounts of N,N-diethyl-N—((Z)-1-tributylstannanylprop-1-en-3-yl)-amine (Intermediate 3, 0.997 g), tris-(dibenzylideneacetone)dipalladium (0) (0.057 g) and tri-tert-butylphosphonium tetrafluoroborate (0.036 g) were added and the mixture was stirred and heated at 95° C. for 30 minutes. After cooling, the mixture was diluted with ethyl acetate and washed with water, dried (Na2SO4) and filtered. The filtrate was concentrated in vacuo and the residue was purified by chromatography on silica, eluting with a mixture of methanol and DCM with a gradient of 0-30% to give methyl 7-[2-((Z)-3-diethylaminoprop-1-enyl)-4-fluorobenzenesulfonylamino]-4H-5-oxa-3,9b-diaza-cyclopenta[a]naphthalene-6-carboxylate (0.158 g) as a light brown foam.

後処理

  1. customwas de-gassed
  2. custompurged with nitrogen
  3. additionFurther amounts of tris-(dibenzylideneacetone)dipalladium (0) (0.057 g) and tri-tert-butylphosphonium tetrafluoroborate (0.036 g) were added
  4. temperatureheated at 95° C. for 2 hours
  5. additionFurther amounts of N,N-diethyl-N—((Z)-1-tributylstannanylprop-1-en-3-yl)-amine (Intermediate 3, 0.997 g), tris-(dibenzylideneacetone)dipalladium (0) (0.057 g) and tri-tert-butylphosphonium tetrafluoroborate (0.036 g) were added
  6. stirringthe mixture was stirred
  7. temperatureheated at 95° C. for 30 minutes
  8. temperatureAfter cooling
  9. additionthe mixture was diluted with ethyl acetate
  10. washwashed with water
  11. dry with materialdried (Na2SO4)
  12. filtrationfiltered
  13. concentrationThe filtrate was concentrated in vacuo
  14. customthe residue was purified by chromatography on silica
  15. washeluting with a mixture of methanol and DCM with a gradient of 0-30%

出典と根拠

ORDレコード
ord-6c5bf68b577f47cf86f1f1c2d7ef8556
出典データセット
uspto-grants-2016_01
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US09242997B2

反応ノート

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