(S)-N-(bis(4-methoxyphenyl)(phenyl)methyl)-4-(5-bromo-2-fluorophenyl)-4-(difluoromethyl)-5,6-dihydro-4H-1,3-oxazin-2-amine

Base Information

Chemical Name:(S)-N-(bis(4-methoxyphenyl)(phenyl)methyl)-4-(5-bromo-2-fluorophenyl)-4-(difluoromethyl)-5,6-dihydro-4H-1,3-oxazin-2-amine
CAS No.:1415914-94-1
Molecular Formula:C₃₂H₂₈BrF₃N₂O₃
Molecular Weight:625.485
Hs Code.:

Synonyms:(S)-N-(bis(4-methoxyphenyl)(phenyl)methyl)-4-(5-bromo-2-fluorophenyl)-4-(difluoromethyl)-5,6-dihydro-4H-1,3-oxazin-2-amine

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Chemical Property of (S)-N-(bis(4-methoxyphenyl)(phenyl)methyl)-4-(5-bromo-2-fluorophenyl)-4-(difluoromethyl)-5,6-dihydro-4H-1,3-oxazin-2-amine

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Technology Process of (S)-N-(bis(4-methoxyphenyl)(phenyl)methyl)-4-(5-bromo-2-fluorophenyl)-4-(difluoromethyl)-5,6-dihydro-4H-1,3-oxazin-2-amine

There total 8 articles about (S)-N-(bis(4-methoxyphenyl)(phenyl)methyl)-4-(5-bromo-2-fluorophenyl)-4-(difluoromethyl)-5,6-dihydro-4H-1,3-oxazin-2-amine which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 95.6%

: 1414877-46-5
(S)-4-(5-bromo-2-fluorophenyl)-4-(difluoromethyl)-5,6-dihydro-4H-1,3-oxazin-2-amine

: 40615-36-9
4,4'-dimethoxytrityl chloride

: 1415914-94-1
(S)-N-(bis(4-methoxyphenyl)(phenyl)methyl)-4-(5-bromo-2-fluorophenyl)-4-(difluoromethyl)-5,6-dihydro-4H-1,3-oxazin-2-amine

Guidance literature:: In dichloromethane; at 0 - 23 ℃; for 16h;

Reference yield:

: 460-00-4
1-Bromo-4-fluorobenzene

: 1415914-94-1
(S)-N-(bis(4-methoxyphenyl)(phenyl)methyl)-4-(5-bromo-2-fluorophenyl)-4-(difluoromethyl)-5,6-dihydro-4H-1,3-oxazin-2-amine

Guidance literature:: Multi-step reaction with 8 steps

1.1: diisopropylamine; n-butyllithium / hexane; tetrahydrofuran / 2.5 h / -70 - -60 °C

1.2: -10 °C

2.1: titanium(IV) tetraethanolate / tetrahydrofuran / 3 h / 23 - 70 °C

3.1: diisopropylamine; n-butyllithium / triisopropoxytitanium(IV) chloride / hexane; tetrahydrofuran / 0.5 h / -70 °C

3.2: 2 h / -70 °C

4.1: Reprosil Chiral NR column / n-heptane; ethanol / Resolution of racemate

5.1: lithium borohydride / tetrahydrofuran / 16 h / 5 - 23 °C

5.2: 0.75 h / Cooling with acetone-dry ice

6.1: hydrogenchloride / tetrahydrofuran / 4 h / 23 °C

7.1: ethanol / 16 h / 23 - 80 °C / Inert atmosphere; Sealed tube

7.2: Cooling with ice

8.1: dichloromethane / 16 h / 0 - 23 °C

With hydrogenchloride; titanium(IV) tetraethanolate; lithium borohydride; n-butyllithium; diisopropylamine; triisopropoxytitanium(IV) chloride; In tetrahydrofuran; ethanol; hexane; n-heptane; dichloromethane;

Reference yield:

: 1262858-97-8
1-(5-bromo-2-fluorophenyl)-2,2-difluoroethanone

: 1415914-94-1
(S)-N-(bis(4-methoxyphenyl)(phenyl)methyl)-4-(5-bromo-2-fluorophenyl)-4-(difluoromethyl)-5,6-dihydro-4H-1,3-oxazin-2-amine

Guidance literature:: Multi-step reaction with 7 steps

1.1: titanium(IV) tetraethanolate / tetrahydrofuran / 3 h / 23 - 70 °C

2.1: diisopropylamine; n-butyllithium / triisopropoxytitanium(IV) chloride / hexane; tetrahydrofuran / 0.5 h / -70 °C

2.2: 2 h / -70 °C

3.1: Reprosil Chiral NR column / n-heptane; ethanol / Resolution of racemate

4.1: lithium borohydride / tetrahydrofuran / 16 h / 5 - 23 °C

4.2: 0.75 h / Cooling with acetone-dry ice

5.1: hydrogenchloride / tetrahydrofuran / 4 h / 23 °C

6.1: ethanol / 16 h / 23 - 80 °C / Inert atmosphere; Sealed tube

6.2: Cooling with ice

7.1: dichloromethane / 16 h / 0 - 23 °C

With hydrogenchloride; titanium(IV) tetraethanolate; lithium borohydride; n-butyllithium; diisopropylamine; triisopropoxytitanium(IV) chloride; In tetrahydrofuran; ethanol; hexane; n-heptane; dichloromethane;