(R)-tert-butyl 4-(3,4-difluorophenyl)-2-methyl-6-oxo-1,4,5,6-tetrahydropyridine-3-carboxylate

Base Information

Chemical Name:(R)-tert-butyl 4-(3,4-difluorophenyl)-2-methyl-6-oxo-1,4,5,6-tetrahydropyridine-3-carboxylate
CAS No.:1334529-02-0
Molecular Formula:C₁₇H₁₉F₂NO₃
Molecular Weight:323.34
Hs Code.:

Synonyms:(R)-tert-butyl 4-(3,4-difluorophenyl)-2-methyl-6-oxo-1,4,5,6-tetrahydropyridine-3-carboxylate

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Chemical Property of (R)-tert-butyl 4-(3,4-difluorophenyl)-2-methyl-6-oxo-1,4,5,6-tetrahydropyridine-3-carboxylate

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Technology Process of (R)-tert-butyl 4-(3,4-difluorophenyl)-2-methyl-6-oxo-1,4,5,6-tetrahydropyridine-3-carboxylate

There total 2 articles about (R)-tert-butyl 4-(3,4-difluorophenyl)-2-methyl-6-oxo-1,4,5,6-tetrahydropyridine-3-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: 100.0%

: 1334528-90-3
(E)-3-(3,4-difluorophenyl)acrylaldehyde

: 856427-32-2
tert-butyl (2E)-3-aminobut-2-enoate

: 1334529-02-0
(R)-tert-butyl 4-(3,4-difluorophenyl)-2-methyl-6-oxo-1,4,5,6-tetrahydropyridine-3-carboxylate

Guidance literature:: With (5aS,10bR)-5a,10b-dihydro-2-(2,4,6-trimethylphenyl)-4H,6H-indeno[2,1-b]-1,2,4-triazolo[4,3-d]-1,4-oxazinium chloride; 3,5,3',5'-tetra-tert-butyl-4,4'-diphenoquinone; N-ethyl-N,N-diisopropylamine; In toluene; at 23 ℃; for 12h; optical yield given as %ee; enantioselective reaction; Inert atmosphere;
DOI:10.1021/ol202272t

Reference yield:

: 34036-07-2
3,4 difluorobenzaldehyde

: 1334529-02-0
(R)-tert-butyl 4-(3,4-difluorophenyl)-2-methyl-6-oxo-1,4,5,6-tetrahydropyridine-3-carboxylate

Guidance literature:: Multi-step reaction with 2 steps

1: diisobutylaluminium hydride / Inert atmosphere

2: (5aS,10bR)-5a,10b-dihydro-2-(2,4,6-trimethylphenyl)-4H,6H-indeno[2,1-b]-1,2,4-triazolo[4,3-d]-1,4-oxazinium chloride; 3,5,3',5'-tetra-tert-butyl-4,4'-diphenoquinone; N-ethyl-N,N-diisopropylamine / toluene / 12 h / 23 °C / Inert atmosphere

With (5aS,10bR)-5a,10b-dihydro-2-(2,4,6-trimethylphenyl)-4H,6H-indeno[2,1-b]-1,2,4-triazolo[4,3-d]-1,4-oxazinium chloride; 3,5,3',5'-tetra-tert-butyl-4,4'-diphenoquinone; diisobutylaluminium hydride; N-ethyl-N,N-diisopropylamine; In toluene; 2: Aza-Claisen rearrangement;
DOI:10.1021/ol202272t