tert-butyl (3S,9aS)-3-(3-cyano-2,4-difluorophenyl)hexahydropyrazino[2,1-c][1,4]oxazine-8(1H)-carboxylate

Base Information

• Chemical Name: tert-butyl (3S,9aS)-3-(3-cyano-2,4-difluorophenyl)hexahydropyrazino[2,1-c][1,4]oxazine-8(1H)-carboxylate
• CAS No.: 1426072-90-3
• Molecular Formula: C₁₉H₂₃F₂N₃O₃
• Molecular Weight: 379.407

Synonyms:tert-butyl (3S,9aS)-3-(3-cyano-2,4-difluorophenyl)hexahydropyrazino[2,1-c][1,4]oxazine-8(1H)-carboxylate

Chemical Property of tert-butyl (3S,9aS)-3-(3-cyano-2,4-difluorophenyl)hexahydropyrazino[2,1-c][1,4]oxazine-8(1H)-carboxylate

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Technology Process of tert-butyl (3S,9aS)-3-(3-cyano-2,4-difluorophenyl)hexahydropyrazino[2,1-c][1,4]oxazine-8(1H)-carboxylate

There total 9 articles about tert-butyl (3S,9aS)-3-(3-cyano-2,4-difluorophenyl)hexahydropyrazino[2,1-c][1,4]oxazine-8(1H)-carboxylate 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:

tert-butyl (3S)-4-[2-(3-cyano-2,4-difluorophenyl)-2-hydroxyethyl]-3-(hydroxymethyl)piperazine-1-carboxylate (1426071-36-4) → tert-butyl (3R,9aS)-3-(3-cyano-2,4-difluorophenyl)hexahydropyrazino[2,1-c][1,4]oxazine-8(1H)-carboxylate (1426072-89-0) + tert-butyl (3S,9aS)-3-(3-cyano-2,4-difluorophenyl)hexahydropyrazino[2,1-c][1,4]oxazine-8(1H)-carboxylate (1426072-90-3)

Guidance literature:

With cyanomethylenetributyl-phosphorane; In benzene; at 100 ℃; for 16h; Inert atmosphere;

Reference yield:

tert-butyl(9aS)-3-(3-cyano-2,4-difluorophenyl )hexahydropyrazino[2,1-c][ 1,4]oxazine-8(1H)-carboxylate → tert-butyl (3R,9aS)-3-(3-cyano-2,4-difluorophenyl)hexahydropyrazino[2,1-c][1,4]oxazine-8(1H)-carboxylate (1426072-89-0) + tert-butyl (3S,9aS)-3-(3-cyano-2,4-difluorophenyl)hexahydropyrazino[2,1-c][1,4]oxazine-8(1H)-carboxylate (1426072-90-3)

Guidance literature:

With Chirapak AD; In n-heptane; isopropyl alcohol;

Reference yield:

tert-butyl (9aS)-3-(3-cyano-2,4-difluorophenyl)hexahydropyrazino[2,1-c][1,4]oxazine-8(1H)-carboxylate → tert-butyl (3R,9aS)-3-(3-cyano-2,4-difluorophenyl)hexahydropyrazino[2,1-c][1,4]oxazine-8(1H)-carboxylate (1426072-89-0) + tert-butyl (3S,9aS)-3-(3-cyano-2,4-difluorophenyl)hexahydropyrazino[2,1-c][1,4]oxazine-8(1H)-carboxylate (1426072-90-3)

Guidance literature:

With chirapakAD; In n-heptane; isopropyl alcohol;

upstream raw materials:

2,6-difluoro-3-methoxy-benzonitrile

2,6-difluoro-3-hydroxybenzonitrile

3-cyano-2,4-difluorophenyl trifluoromethanesulfonate

3-ethenyl-2,6-difluorobenzonitrile

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