Product Name

  • Name

    Diclofensine

  • EINECS
  • CAS No. 67165-56-4
  • Article Data5
  • CAS DataBase
  • Density 1.242 g/cm3
  • Solubility
  • Melting Point
  • Formula C17H17Cl2NO
  • Boiling Point 422.595 °C at 760 mmHg
  • Molecular Weight 322.234
  • Flash Point 209.378 °C
  • Transport Information
  • Appearance
  • Safety
  • Risk Codes
  • Molecular Structure Molecular Structure of 67165-56-4 (Diclofensine)
  • Hazard Symbols
  • Synonyms Ro 8-4650;Diclofensine;4-(3,4-Dichlorophenyl)-1,2,3,4-tetrahydro-7-methoxy-2-methylisoquinoline;
  • PSA 12.47000
  • LogP 4.51720

Synthetic route

1-(3,4-dichlorophenyl)-2-((3-methoxybenzyl)(methyl)amino)ethanol
802051-24-7

1-(3,4-dichlorophenyl)-2-((3-methoxybenzyl)(methyl)amino)ethanol

A

4-(3,4-dichlorophenyl)-5-methoxy-2-methyl-1,2,3,4-tetrahydroisoquinoline
692248-97-8

4-(3,4-dichlorophenyl)-5-methoxy-2-methyl-1,2,3,4-tetrahydroisoquinoline

B

Diclofensine
67165-56-4

Diclofensine

Conditions
ConditionsYield
Stage #1: 1-(3,4-dichlorophenyl)-2-((3-methoxybenzyl)(methyl)amino)ethanol With sulfuric acid In dichloromethane at 0℃; for 28h;
Stage #2: With sodium hydroxide In dichloromethane pH=9;
A 10%
B 59%
Stage #1: 1-(3,4-dichlorophenyl)-2-((3-methoxybenzyl)(methyl)amino)ethanol With sulfuric acid In dichloromethane at 0℃; for 28h;
Stage #2: With sodium hydroxide In dichloromethane pH=~ 9;
Stage #1: 1-(3,4-dichlorophenyl)-2-((3-methoxybenzyl)(methyl)amino)ethanol With sulfuric acid In dichloromethane; water at 0℃; for 28h;
Stage #2: With sodium hydroxide In dichloromethane; water pH=~ 9;
1-(3,4-dichlorophenyl)-2-((3-methoxybenzyl)(methyl)amino)ethanone
1254941-88-2

1-(3,4-dichlorophenyl)-2-((3-methoxybenzyl)(methyl)amino)ethanone

Diclofensine
67165-56-4

Diclofensine

Conditions
ConditionsYield
Multi-step reaction with 2 steps
1.1: sodium tetrahydroborate / methanol / 2 h / 0 °C
2.1: sulfuric acid / dichloromethane; water / 28 h / 0 °C
2.2: pH ~ 9
View Scheme
1-(3-methoxyphenyl)-N-methylmethanamine
41789-95-1

1-(3-methoxyphenyl)-N-methylmethanamine

Diclofensine
67165-56-4

Diclofensine

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1.1: dichloromethane / 1 h / 0 °C
1.2: 1 h / 0 °C
2.1: sodium tetrahydroborate / methanol / 2 h / 0 °C
3.1: sulfuric acid / dichloromethane; water / 28 h / 0 °C
3.2: pH ~ 9
View Scheme
3-methoxy-benzaldehyde
591-31-1

3-methoxy-benzaldehyde

Diclofensine
67165-56-4

Diclofensine

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1.1: sodium tetrahydroborate / methanol; water / 2 h / 0 °C
2.1: dichloromethane / 1 h / 0 °C
2.2: 1 h / 0 °C
3.1: sodium tetrahydroborate / methanol / 2 h / 0 °C
4.1: sulfuric acid / dichloromethane; water / 28 h / 0 °C
4.2: pH ~ 9
View Scheme
Diclofensine
67165-56-4

Diclofensine

(+)-4-(3,4-dichlorophenyl)-7-methoxy-2-methyl-1,2,3,4-tetrahydroisoquinoline

(+)-4-(3,4-dichlorophenyl)-7-methoxy-2-methyl-1,2,3,4-tetrahydroisoquinoline

(-)-4-(3,4-dichlorophenyl)-7-methoxy-2-methyl-1,2,3,4-tetrahydroisoquinoline

(-)-4-(3,4-dichlorophenyl)-7-methoxy-2-methyl-1,2,3,4-tetrahydroisoquinoline

Conditions
ConditionsYield
With CHIRALPAK AD Purification / work up; Resolution of racemate;
With Chiralpak AD column In diethylamine; isopropyl alcohol Purification / work up; Resolution of racemate;
carbonochloridic acid 1-chloro-ethyl ester
50893-53-3

carbonochloridic acid 1-chloro-ethyl ester

Diclofensine
67165-56-4

Diclofensine

C19H18Cl3NO3

C19H18Cl3NO3

Conditions
ConditionsYield
With N,N,N',N'-tetramethyl-1,8-diaminonaphthalene In 1,2-dichloro-ethane Reflux;
Diclofensine
67165-56-4

Diclofensine

A

(-)-4-(3,4-dichlorophenyl)-7-methoxy-2-methyl-1,2,3,4-tetrahydroisoquinoline
50560-45-7

(-)-4-(3,4-dichlorophenyl)-7-methoxy-2-methyl-1,2,3,4-tetrahydroisoquinoline

B

(S)-diclofensine
50560-38-8

(S)-diclofensine

Conditions
ConditionsYield
With Chiralpak AD column In n-heptane; diethylamine; isopropyl alcohol Purification / work up; Resolution of racemate;
Diclofensine
67165-56-4

Diclofensine

4-(3,4-dichlorophenyl)-2-methyl-1,2,3,4-tetrahydroisoquinolin-7-yl trifluoromethanesulfonate
1255925-44-0

4-(3,4-dichlorophenyl)-2-methyl-1,2,3,4-tetrahydroisoquinolin-7-yl trifluoromethanesulfonate

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: Chiralpak AD column / diethylamine; isopropyl alcohol / Resolution of racemate
2: hydrogen bromide / water; acetic acid / 8 h / Reflux
3: pyridine / dichloromethane / 1 h / -78 - 0 °C
View Scheme
Diclofensine
67165-56-4

Diclofensine

7-([1,2,4]triazolo[1,5-a]pyridin-6-yl)-4-(3,4-dichlorophenyl)-1,2,3,4-tetrahydroisoquinoline
1254941-99-5

7-([1,2,4]triazolo[1,5-a]pyridin-6-yl)-4-(3,4-dichlorophenyl)-1,2,3,4-tetrahydroisoquinoline

Conditions
ConditionsYield
Multi-step reaction with 7 steps
1: Chiralpak AD column / diethylamine; isopropyl alcohol / Resolution of racemate
2: hydrogen bromide / water; acetic acid / 8 h / Reflux
3: pyridine / dichloromethane / 1 h / -78 - 0 °C
4: potassium acetate / (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / dimethyl sulfoxide / 1 h / 80 °C / Inert atmosphere
5: caesium carbonate / (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / water / 1 h / 80 °C / Inert atmosphere
6: N,N,N',N'-tetramethyl-1,8-diaminonaphthalene / 1,2-dichloro-ethane / 19.33 h / 0 - 20 °C
7: methanol / 1 h / Reflux
View Scheme
Multi-step reaction with 9 steps
1.1: Chiralpak AD column / diethylamine; isopropyl alcohol / Resolution of racemate
2.1: hydrogen bromide / water; acetic acid / 8 h / Reflux
3.1: pyridine / dichloromethane / 1 h / -78 - 0 °C
4.1: potassium acetate / (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / dimethyl sulfoxide / 1 h / 80 °C / Inert atmosphere
5.1: N,N,N',N'-tetramethyl-1,8-diaminonaphthalene / dichloromethane / 0.92 h / 0 °C / Reflux
6.1: methanol / 1 h / Reflux
7.1: dmap; triethylamine / dichloromethane / 4 h / 20 °C
8.1: caesium carbonate / dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2 / water; N,N-dimethyl-formamide / 1 h / 80 °C / Inert atmosphere; Sonication
9.1: hydrogenchloride / ethanol; water / 1 h / 20 °C
9.2: pH 8 - 9
View Scheme
Diclofensine
67165-56-4

Diclofensine

tert-butyl 7-([1,2,4]triazolo[1,5-a]pyridin-6-yl)-4-(3,4-dichlorophenyl)-3,4-dihydroisoquinoline-2(1H)-carboxylate
1254942-01-2

tert-butyl 7-([1,2,4]triazolo[1,5-a]pyridin-6-yl)-4-(3,4-dichlorophenyl)-3,4-dihydroisoquinoline-2(1H)-carboxylate

Conditions
ConditionsYield
Multi-step reaction with 8 steps
1: Chiralpak AD column / diethylamine; isopropyl alcohol / Resolution of racemate
2: hydrogen bromide / water; acetic acid / 8 h / Reflux
3: pyridine / dichloromethane / 1 h / -78 - 0 °C
4: potassium acetate / (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / dimethyl sulfoxide / 1 h / 80 °C / Inert atmosphere
5: caesium carbonate / (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / water / 1 h / 80 °C / Inert atmosphere
6: N,N,N',N'-tetramethyl-1,8-diaminonaphthalene / 1,2-dichloro-ethane / 19.33 h / 0 - 20 °C
7: methanol / 1 h / Reflux
8: N,N-dimethyl-formamide / 1 h / 20 °C
View Scheme
Multi-step reaction with 8 steps
1: Chiralpak AD column / diethylamine; isopropyl alcohol / Resolution of racemate
2: hydrogen bromide / water; acetic acid / 8 h / Reflux
3: pyridine / dichloromethane / 1 h / -78 - 0 °C
4: potassium acetate / (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / dimethyl sulfoxide / 1 h / 80 °C / Inert atmosphere
5: N,N,N',N'-tetramethyl-1,8-diaminonaphthalene / dichloromethane / 0.92 h / 0 °C / Reflux
6: methanol / 1 h / Reflux
7: dmap; triethylamine / dichloromethane / 4 h / 20 °C
8: caesium carbonate / dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2 / water; N,N-dimethyl-formamide / 1 h / 80 °C / Inert atmosphere; Sonication
View Scheme
Diclofensine
67165-56-4

Diclofensine

(+)-tert-butyl 7-([1,2,4]triazolo[1,5-a]pyridin-6-yl)-4-(3,4-dichlorophenyl)-3,4-dihydroisoquinoline-2(1H)-carboxylate

(+)-tert-butyl 7-([1,2,4]triazolo[1,5-a]pyridin-6-yl)-4-(3,4-dichlorophenyl)-3,4-dihydroisoquinoline-2(1H)-carboxylate

(-)-tert-butyl 7-([1,2,4]triazolo[1,5-a]pyridin-6-yl)-4-(3,4-dichlorophenyl)-3,4-dihydroisoquinoline-2(1H)-carboxylate

(-)-tert-butyl 7-([1,2,4]triazolo[1,5-a]pyridin-6-yl)-4-(3,4-dichlorophenyl)-3,4-dihydroisoquinoline-2(1H)-carboxylate

Conditions
ConditionsYield
Multi-step reaction with 9 steps
1: Chiralpak AD column / diethylamine; isopropyl alcohol / Resolution of racemate
2: hydrogen bromide / water; acetic acid / 8 h / Reflux
3: pyridine / dichloromethane / 1 h / -78 - 0 °C
4: potassium acetate / (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / dimethyl sulfoxide / 1 h / 80 °C / Inert atmosphere
5: caesium carbonate / (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / water / 1 h / 80 °C / Inert atmosphere
6: N,N,N',N'-tetramethyl-1,8-diaminonaphthalene / 1,2-dichloro-ethane / 19.33 h / 0 - 20 °C
7: methanol / 1 h / Reflux
8: N,N-dimethyl-formamide / 1 h / 20 °C
9: Chiralpak AS-H column / methanol; carbon dioxide; triethylamine / Resolution of racemate
View Scheme
Multi-step reaction with 9 steps
1: Chiralpak AD column / diethylamine; isopropyl alcohol / Resolution of racemate
2: hydrogen bromide / water; acetic acid / 8 h / Reflux
3: pyridine / dichloromethane / 1 h / -78 - 0 °C
4: potassium acetate / (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / dimethyl sulfoxide / 1 h / 80 °C / Inert atmosphere
5: N,N,N',N'-tetramethyl-1,8-diaminonaphthalene / dichloromethane / 0.92 h / 0 °C / Reflux
6: methanol / 1 h / Reflux
7: dmap; triethylamine / dichloromethane / 4 h / 20 °C
8: caesium carbonate / dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2 / water; N,N-dimethyl-formamide / 1 h / 80 °C / Inert atmosphere; Sonication
9: Chiralpak AS-H column / methanol; carbon dioxide; triethylamine / Resolution of racemate
View Scheme
Diclofensine
67165-56-4

Diclofensine

(+)-7-([1,2,4]triazolo[1,5-a]pyridin-6-yl)-4-(3,4-dichlorophenyl)-1,2,3,4-tetrahydroisoquinoline monohydrochloride

(+)-7-([1,2,4]triazolo[1,5-a]pyridin-6-yl)-4-(3,4-dichlorophenyl)-1,2,3,4-tetrahydroisoquinoline monohydrochloride

Conditions
ConditionsYield
Multi-step reaction with 10 steps
1: Chiralpak AD column / diethylamine; isopropyl alcohol / Resolution of racemate
2: hydrogen bromide / water; acetic acid / 8 h / Reflux
3: pyridine / dichloromethane / 1 h / -78 - 0 °C
4: potassium acetate / (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / dimethyl sulfoxide / 1 h / 80 °C / Inert atmosphere
5: caesium carbonate / (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / water / 1 h / 80 °C / Inert atmosphere
6: N,N,N',N'-tetramethyl-1,8-diaminonaphthalene / 1,2-dichloro-ethane / 19.33 h / 0 - 20 °C
7: methanol / 1 h / Reflux
8: N,N-dimethyl-formamide / 1 h / 20 °C
9: Chiralpak AS-H column / methanol; carbon dioxide; triethylamine / Resolution of racemate
10: hydrogenchloride / ethanol; dichloromethane / 2 h / 70 °C / Reflux
View Scheme
Multi-step reaction with 10 steps
1: Chiralpak AD column / diethylamine; isopropyl alcohol / Resolution of racemate
2: hydrogen bromide / water; acetic acid / 8 h / Reflux
3: pyridine / dichloromethane / 1 h / -78 - 0 °C
4: potassium acetate / (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / dimethyl sulfoxide / 1 h / 80 °C / Inert atmosphere
5: N,N,N',N'-tetramethyl-1,8-diaminonaphthalene / dichloromethane / 0.92 h / 0 °C / Reflux
6: methanol / 1 h / Reflux
7: dmap; triethylamine / dichloromethane / 4 h / 20 °C
8: caesium carbonate / dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2 / water; N,N-dimethyl-formamide / 1 h / 80 °C / Inert atmosphere; Sonication
9: Chiralpak AS-H column / methanol; carbon dioxide; triethylamine / Resolution of racemate
10: hydrogenchloride / ethanol; dichloromethane / 2 h / 70 °C / Reflux
View Scheme
Diclofensine
67165-56-4

Diclofensine

(+)-7-([1,2,4]triazolo[1,5-α]pyridin-6-yl)-4-(3,4-dichlorophenyl)-1,2,3,4-tetrahydroisoquinoline L-tartrate

(+)-7-([1,2,4]triazolo[1,5-α]pyridin-6-yl)-4-(3,4-dichlorophenyl)-1,2,3,4-tetrahydroisoquinoline L-tartrate

Conditions
ConditionsYield
Multi-step reaction with 10 steps
1.1: Chiralpak AD column / diethylamine; isopropyl alcohol / Resolution of racemate
2.1: hydrogen bromide / water; acetic acid / 8 h / Reflux
3.1: pyridine / dichloromethane / 1 h / -78 - 0 °C
4.1: potassium acetate / (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / dimethyl sulfoxide / 1 h / 80 °C / Inert atmosphere
5.1: N,N,N',N'-tetramethyl-1,8-diaminonaphthalene / dichloromethane / 0.92 h / 0 °C / Reflux
6.1: methanol / 1 h / Reflux
7.1: dmap; triethylamine / dichloromethane / 4 h / 20 °C
8.1: caesium carbonate / dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2 / water; N,N-dimethyl-formamide / 1 h / 80 °C / Inert atmosphere; Sonication
9.1: hydrogenchloride / ethanol; water / 1 h / 20 °C
9.2: pH 8 - 9
10.1: activated carbon / ethanol / 4 h / 20 - 70 °C
View Scheme
Multi-step reaction with 8 steps
1: Chiralpak AD column / diethylamine; isopropyl alcohol / Resolution of racemate
2: hydrogen bromide / water; acetic acid / 8 h / Reflux
3: pyridine / dichloromethane / 1 h / -78 - 0 °C
4: potassium acetate / (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / dimethyl sulfoxide / 1 h / 80 °C / Inert atmosphere
5: caesium carbonate / (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / water / 1 h / 80 °C / Inert atmosphere
6: N,N,N',N'-tetramethyl-1,8-diaminonaphthalene / 1,2-dichloro-ethane / 19.33 h / 0 - 20 °C
7: methanol / 1 h / Reflux
8: activated carbon / ethanol / 4 h / 20 - 70 °C
View Scheme
Diclofensine
67165-56-4

Diclofensine

2-(4-(3,4-dichlorophenyl)-1,2,3,4-tetrahydroisoquinolin-7-yl)benzonitrile

2-(4-(3,4-dichlorophenyl)-1,2,3,4-tetrahydroisoquinolin-7-yl)benzonitrile

Conditions
ConditionsYield
Multi-step reaction with 6 steps
1: Chiralpak AD column / diethylamine; isopropyl alcohol / Resolution of racemate
2: hydrogen bromide / water; acetic acid / 8 h / Reflux
3: pyridine / dichloromethane / 1 h / -78 - 0 °C
4: caesium carbonate / dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2 / water; N,N-dimethyl-formamide / 3 h / 90 °C / Inert atmosphere
5: N,N,N',N'-tetramethyl-1,8-diaminonaphthalene / 1,2-dichloro-ethane / 2.25 h / 0 °C / Reflux
6: methanol / 1 h / Reflux
View Scheme
Diclofensine
67165-56-4

Diclofensine

5-(4-(3,4-dichlorophenyl)-1,2,3,4-tetrahydroisoquinolin-7-yl)pyrazin-2-amine

5-(4-(3,4-dichlorophenyl)-1,2,3,4-tetrahydroisoquinolin-7-yl)pyrazin-2-amine

Conditions
ConditionsYield
Multi-step reaction with 8 steps
1: N,N,N',N'-tetramethyl-1,8-diaminonaphthalene / 1,2-dichloro-ethane / Reflux
2: methanol / 1 h / Reflux
3: N-ethyl-N,N-diisopropylamine / dichloromethane / 2 h
4: boron tribromide / dichloromethane / -78 - 0 °C
5: pyridine / dichloromethane
6: potassium acetate / dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2 / dimethyl sulfoxide / 2.5 h / 80 °C / Inert atmosphere
7: caesium carbonate / dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2 / water; N,N-dimethyl-formamide / 3 h / 90 °C / Inert atmosphere
8: potassium carbonate / ethanol; dichloromethane
View Scheme
Diclofensine
67165-56-4

Diclofensine

4-(3,4-dichlorophenyl)-1,2,3,4-tetrahydroisoquinolin-7-yl trifluoromethanesulfonate
1255925-09-7

4-(3,4-dichlorophenyl)-1,2,3,4-tetrahydroisoquinolin-7-yl trifluoromethanesulfonate

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: Chiralpak AD column / diethylamine; isopropyl alcohol / Resolution of racemate
2: hydrogen bromide / water; acetic acid / 8 h / Reflux
3: pyridine / dichloromethane / 1 h / -78 - 0 °C
4: N,N,N',N'-tetramethyl-1,8-diaminonaphthalene / 1,2-dichloro-ethane / Reflux
5: methanol / 1 h / Reflux
View Scheme
Diclofensine
67165-56-4

Diclofensine

4-(4-(3,4-dichlorophenyl)-1,2,3,4-tetrahydroisoquinolin-7-yl)benzamide
1255924-39-0

4-(4-(3,4-dichlorophenyl)-1,2,3,4-tetrahydroisoquinolin-7-yl)benzamide

Conditions
ConditionsYield
Multi-step reaction with 6 steps
1: Chiralpak AD column / diethylamine; isopropyl alcohol / Resolution of racemate
2: hydrogen bromide / water; acetic acid / 8 h / Reflux
3: pyridine / dichloromethane / 1 h / -78 - 0 °C
4: N,N,N',N'-tetramethyl-1,8-diaminonaphthalene / 1,2-dichloro-ethane / Reflux
5: methanol / 1 h / Reflux
6: caesium carbonate / (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / water; N,N-dimethyl-formamide / 2 h / 90 °C / Inert atmosphere
View Scheme
Diclofensine
67165-56-4

Diclofensine

(+)-4-(3,4-dichlorophenyl)-7-(pyridazin-3-yl)-1,2,3,4-tetrahydroisoquinoline

(+)-4-(3,4-dichlorophenyl)-7-(pyridazin-3-yl)-1,2,3,4-tetrahydroisoquinoline

Conditions
ConditionsYield
Multi-step reaction with 7 steps
1: Chiralpak AD column / diethylamine; isopropyl alcohol / Resolution of racemate
2: hydrogen bromide / water; acetic acid / 8 h / Reflux
3: pyridine / dichloromethane / 1 h / -78 - 0 °C
4: potassium acetate / (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / dimethyl sulfoxide / 1 h / 80 °C / Inert atmosphere
5: caesium carbonate / (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / water; N,N-dimethyl-formamide / 6 h / 80 °C / Inert atmosphere
6: hydrazine hydrate / palladium 10% on activated carbon / ethanol / 5 h / 75 °C
7: trifluoroacetic acid / dichloromethane / 1 h / 20 °C
View Scheme
Diclofensine
67165-56-4

Diclofensine

4-(3,4-dichlorophenyl)-7-methoxy-2-(2-nitrophenylsulfonyl)-1,2,3,4-tetrahydroisoquinoline

4-(3,4-dichlorophenyl)-7-methoxy-2-(2-nitrophenylsulfonyl)-1,2,3,4-tetrahydroisoquinoline

Conditions
ConditionsYield
Multi-step reaction with 3 steps
1: N,N,N',N'-tetramethyl-1,8-diaminonaphthalene / 1,2-dichloro-ethane / Reflux
2: methanol / 1 h / Reflux
3: N-ethyl-N,N-diisopropylamine / dichloromethane / 2 h
View Scheme
Diclofensine
67165-56-4

Diclofensine

4-(3,4-dichlorophenyl)-2-(2-nitrophenylsulfonyl)-1,2,3,4-tetrahydroisoquinolin-7-ol

4-(3,4-dichlorophenyl)-2-(2-nitrophenylsulfonyl)-1,2,3,4-tetrahydroisoquinolin-7-ol

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: N,N,N',N'-tetramethyl-1,8-diaminonaphthalene / 1,2-dichloro-ethane / Reflux
2: methanol / 1 h / Reflux
3: N-ethyl-N,N-diisopropylamine / dichloromethane / 2 h
4: boron tribromide / dichloromethane / -78 - 0 °C
View Scheme
Diclofensine
67165-56-4

Diclofensine

C19H15Cl3F3NO5S

C19H15Cl3F3NO5S

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: Chiralpak AD column / diethylamine; isopropyl alcohol / Resolution of racemate
2: hydrogen bromide / water; acetic acid / 8 h / Reflux
3: pyridine / dichloromethane / 1 h / -78 - 0 °C
4: N,N,N',N'-tetramethyl-1,8-diaminonaphthalene / 1,2-dichloro-ethane / Reflux
View Scheme
Diclofensine
67165-56-4

Diclofensine

(+)-4-(3,4-dichlorophenyl)-7-(6-(difluoromethoxy)pyridazin-3-yl)-1,2,3,4-tetrahydroisoquinoline

(+)-4-(3,4-dichlorophenyl)-7-(6-(difluoromethoxy)pyridazin-3-yl)-1,2,3,4-tetrahydroisoquinoline

Conditions
ConditionsYield
Multi-step reaction with 9 steps
1.1: Chiralpak AD column / diethylamine; isopropyl alcohol / Resolution of racemate
2.1: hydrogen bromide / water; acetic acid / 8 h / Reflux
3.1: pyridine / dichloromethane / 1 h / -78 - 0 °C
4.1: potassium acetate / (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / dimethyl sulfoxide / 1 h / 80 °C / Inert atmosphere
5.1: N,N,N',N'-tetramethyl-1,8-diaminonaphthalene / dichloromethane / 0.92 h / 0 °C / Reflux
6.1: methanol / 1 h / Reflux
7.1: dmap; triethylamine / dichloromethane / 4 h / 20 °C
8.1: caesium carbonate / (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / water; N,N-dimethyl-formamide / 2 h / 80 °C / Inert atmosphere; Sonication
9.1: hydrogenchloride / ethanol; water / 20 °C
9.2: pH 8 - 9
View Scheme
Diclofensine
67165-56-4

Diclofensine

(+)-4-(3,4-dichlorophenyl)-7-(6-(trifluoromethyl)pyridazin-3-yl)-1,2,3,4-tetrahydroisoquinoline

(+)-4-(3,4-dichlorophenyl)-7-(6-(trifluoromethyl)pyridazin-3-yl)-1,2,3,4-tetrahydroisoquinoline

Conditions
ConditionsYield
Multi-step reaction with 10 steps
1.1: Chiralpak AD column / diethylamine; isopropyl alcohol / Resolution of racemate
2.1: hydrogen bromide / water; acetic acid / 8 h / Reflux
3.1: pyridine / dichloromethane / 1 h / -78 - 0 °C
4.1: potassium acetate / (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / dimethyl sulfoxide / 1 h / 80 °C / Inert atmosphere
5.1: N,N,N',N'-tetramethyl-1,8-diaminonaphthalene / dichloromethane / 0.92 h / 0 °C / Reflux
6.1: methanol / 1 h / Reflux
7.1: dmap; triethylamine / dichloromethane / 4 h / 20 °C
8.1: caesium carbonate / dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2 / water; N,N-dimethyl-formamide / 2 h / 80 °C / Inert atmosphere; Sonication
9.1: hydrogenchloride / water / 2.5 h / 20 °C
10.1: trifluoroacetic acid / dichloromethane / 1 h / 20 °C
10.2: pH ~ 9
View Scheme
Diclofensine
67165-56-4

Diclofensine

4-(3,4-dichlorophenyl)-2-(2-nitrophenylsulfonyl)-7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,2,3,4-tetrahydroisoquinoline

4-(3,4-dichlorophenyl)-2-(2-nitrophenylsulfonyl)-7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,2,3,4-tetrahydroisoquinoline

Conditions
ConditionsYield
Multi-step reaction with 6 steps
1: N,N,N',N'-tetramethyl-1,8-diaminonaphthalene / 1,2-dichloro-ethane / Reflux
2: methanol / 1 h / Reflux
3: N-ethyl-N,N-diisopropylamine / dichloromethane / 2 h
4: boron tribromide / dichloromethane / -78 - 0 °C
5: pyridine / dichloromethane
6: potassium acetate / dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2 / dimethyl sulfoxide / 2.5 h / 80 °C / Inert atmosphere
View Scheme
Diclofensine
67165-56-4

Diclofensine

5-(4-(3,4-dichlorophenyl)-2-(2-nitrophenylsulfonyl)-1,2,3,4-tetrahydroisoquinolin-7-yl)pyrazin-2-amine

5-(4-(3,4-dichlorophenyl)-2-(2-nitrophenylsulfonyl)-1,2,3,4-tetrahydroisoquinolin-7-yl)pyrazin-2-amine

Conditions
ConditionsYield
Multi-step reaction with 7 steps
1: N,N,N',N'-tetramethyl-1,8-diaminonaphthalene / 1,2-dichloro-ethane / Reflux
2: methanol / 1 h / Reflux
3: N-ethyl-N,N-diisopropylamine / dichloromethane / 2 h
4: boron tribromide / dichloromethane / -78 - 0 °C
5: pyridine / dichloromethane
6: potassium acetate / dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2 / dimethyl sulfoxide / 2.5 h / 80 °C / Inert atmosphere
7: caesium carbonate / dichloro(1,1'-bis(diphenylphosphanyl)ferrocene)palladium(II)*CH2Cl2 / water; N,N-dimethyl-formamide / 3 h / 90 °C / Inert atmosphere
View Scheme
Diclofensine
67165-56-4

Diclofensine

4-(3,4-dichlorophenyl)-2-(2-nitrophenylsulfonyl)-1,2,3,4-tetrahydroisoquinolin-7-yl trifluoromethanesulfonate

4-(3,4-dichlorophenyl)-2-(2-nitrophenylsulfonyl)-1,2,3,4-tetrahydroisoquinolin-7-yl trifluoromethanesulfonate

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: N,N,N',N'-tetramethyl-1,8-diaminonaphthalene / 1,2-dichloro-ethane / Reflux
2: methanol / 1 h / Reflux
3: N-ethyl-N,N-diisopropylamine / dichloromethane / 2 h
4: boron tribromide / dichloromethane / -78 - 0 °C
5: pyridine / dichloromethane
View Scheme
Diclofensine
67165-56-4

Diclofensine

7-([1,2,4]triazolo[1,5-α]pyridin-6-yl)-4-(3,4-dichlorophenyl)-2-methyl-1,2,3,4-tetrahydroisoquinoline

7-([1,2,4]triazolo[1,5-α]pyridin-6-yl)-4-(3,4-dichlorophenyl)-2-methyl-1,2,3,4-tetrahydroisoquinoline

Conditions
ConditionsYield
Multi-step reaction with 5 steps
1: Chiralpak AD column / diethylamine; isopropyl alcohol / Resolution of racemate
2: hydrogen bromide / water; acetic acid / 8 h / Reflux
3: pyridine / dichloromethane / 1 h / -78 - 0 °C
4: potassium acetate / (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / dimethyl sulfoxide / 1 h / 80 °C / Inert atmosphere
5: caesium carbonate / (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / water / 1 h / 80 °C / Inert atmosphere
View Scheme
Diclofensine
67165-56-4

Diclofensine

C22H26BCl2NO2

C22H26BCl2NO2

Conditions
ConditionsYield
Multi-step reaction with 4 steps
1: Chiralpak AD column / diethylamine; isopropyl alcohol / Resolution of racemate
2: hydrogen bromide / water; acetic acid / 8 h / Reflux
3: pyridine / dichloromethane / 1 h / -78 - 0 °C
4: potassium acetate / (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / dimethyl sulfoxide / 1 h / 80 °C / Inert atmosphere
View Scheme
Diclofensine
67165-56-4

Diclofensine

4-(3,4-dichlorophenyl)-7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,2,3,4-tetrahydroisoquinoline

4-(3,4-dichlorophenyl)-7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,2,3,4-tetrahydroisoquinoline

Conditions
ConditionsYield
Multi-step reaction with 6 steps
1: Chiralpak AD column / diethylamine; isopropyl alcohol / Resolution of racemate
2: hydrogen bromide / water; acetic acid / 8 h / Reflux
3: pyridine / dichloromethane / 1 h / -78 - 0 °C
4: potassium acetate / (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / dimethyl sulfoxide / 1 h / 80 °C / Inert atmosphere
5: N,N,N',N'-tetramethyl-1,8-diaminonaphthalene / dichloromethane / 0.92 h / 0 °C / Reflux
6: methanol / 1 h / Reflux
View Scheme
Diclofensine
67165-56-4

Diclofensine

tert-butyl 4-(3,4-dichlorophenyl)-7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3,4-dihydroisoquinoline-2(1H)-carboxylate
1255925-45-1

tert-butyl 4-(3,4-dichlorophenyl)-7-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-3,4-dihydroisoquinoline-2(1H)-carboxylate

Conditions
ConditionsYield
Multi-step reaction with 7 steps
1: Chiralpak AD column / diethylamine; isopropyl alcohol / Resolution of racemate
2: hydrogen bromide / water; acetic acid / 8 h / Reflux
3: pyridine / dichloromethane / 1 h / -78 - 0 °C
4: potassium acetate / (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride / dimethyl sulfoxide / 1 h / 80 °C / Inert atmosphere
5: N,N,N',N'-tetramethyl-1,8-diaminonaphthalene / dichloromethane / 0.92 h / 0 °C / Reflux
6: methanol / 1 h / Reflux
7: dmap; triethylamine / dichloromethane / 4 h / 20 °C
View Scheme

Diclofensine Specification

The Diclofensine, with the CAS registry number 67165-56-4, is also known as 4-(3,4-Dichlorophenyl)-1,2,3,4-tetrahydro-7-methoxy-2-methylisoquinoline. It belongs to the product categories of Intermediates & Fine Chemicals; Pharmaceuticals. This chemical's molecular formula is C17H17Cl2NO and molecular weight is 322.23. What's more, its systematic name is 4-(3,4-Dichlorophenyl)-7-methoxy-2-methyl-1,2,3,4-tetrahydroisoquinoline. It is a stimulant which can inhibits reuptake of dopamine and noradrenaline, and it is also an effective antidepressant.

Physical properties of Diclofensine are: (1)ACD/LogP: 3.685; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 1.39; (4)ACD/LogD (pH 7.4): 3.09; (5)ACD/BCF (pH 5.5): 1.89; (6)ACD/BCF (pH 7.4): 95.17; (7)ACD/KOC (pH 5.5): 12.25; (8)ACD/KOC (pH 7.4): 615.99; (9)#H bond acceptors: 2; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 2; (12)Polar Surface Area: 12.47 Å2; (13)Index of Refraction: 1.591; (14)Molar Refractivity: 87.614 cm3; (15)Molar Volume: 259.405 cm3; (16)Polarizability: 34.733×10-24cm3; (17)Surface Tension: 42.8289985656738 dyne/cm; (18)Density: 1.242 g/cm3; (19)Flash Point: 209.378 °C; (20)Enthalpy of Vaporization: 67.679 kJ/mol; (21)Boiling Point: 422.595 °C at 760 mmHg; (22)Vapour Pressure: 0 mmHg at 25°C.

You can still convert the following datas into molecular structure:
(1)SMILES: Clc1ccc(cc1Cl)C3c2ccc(OC)cc2CN(C3)C
(2)Std. InChI: InChI=1S/C17H17Cl2NO/c1-20-9-12-7-13(21-2)4-5-14(12)15(10-20)11-3-6-16(18)17(19)8-11/h3-8,15H,9-10H2,1-2H3
(3)Std. InChIKey: ZJDCGVDEEHWEIG-UHFFFAOYSA-N 

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