(R)-4-[(E)-2-(2-Isocyano-phenyl)-vinyl]-2,2-dimethyl-oxazolidine-3-carboxylic acid tert-butyl ester

Base Information

Chemical Name:(R)-4-[(E)-2-(2-Isocyano-phenyl)-vinyl]-2,2-dimethyl-oxazolidine-3-carboxylic acid tert-butyl ester
CAS No.:375372-35-3
Molecular Formula:C₁₉H₂₄N₂O₃
Molecular Weight:328.411
Hs Code.:

Synonyms:(R)-4-[(E)-2-(2-Isocyano-phenyl)-vinyl]-2,2-dimethyl-oxazolidine-3-carboxylic acid tert-butyl ester

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Chemical Property of (R)-4-[(E)-2-(2-Isocyano-phenyl)-vinyl]-2,2-dimethyl-oxazolidine-3-carboxylic acid tert-butyl ester

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Technology Process of (R)-4-[(E)-2-(2-Isocyano-phenyl)-vinyl]-2,2-dimethyl-oxazolidine-3-carboxylic acid tert-butyl ester

There total 4 articles about (R)-4-[(E)-2-(2-Isocyano-phenyl)-vinyl]-2,2-dimethyl-oxazolidine-3-carboxylic acid tert-butyl ester 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: 78.0%

: 102308-32-7
(4S)-4-formyl-2,2-dimethyl-oxazolidine-3-carboxylic acid tert-butyl ester

: 375372-32-0
Diethyl [(2-isocyanophenyl)methyl]phosphonate

: 375372-35-3
(R)-4-[(E)-2-(2-Isocyano-phenyl)-vinyl]-2,2-dimethyl-oxazolidine-3-carboxylic acid tert-butyl ester

Guidance literature:: Diethyl [(2-isocyanophenyl)methyl]phosphonate; With lithium diisopropyl amide; In tetrahydrofuran; hexane; at -78 ℃; for 0.5h;

(4S)-4-formyl-2,2-dimethyl-oxazolidine-3-carboxylic acid tert-butyl ester; With N,N,N,N,N,N-hexamethylphosphoric triamide; In tetrahydrofuran; hexane; at -78 - 23 ℃; for 1.33333h;
DOI:10.1055/s-2001-16808

Reference yield:

: 79202-15-6
diethyl (hydroxy)(2-nitrophenyl)methylphosphonate

: 375372-35-3
(R)-4-[(E)-2-(2-Isocyano-phenyl)-vinyl]-2,2-dimethyl-oxazolidine-3-carboxylic acid tert-butyl ester

Guidance literature:: Multi-step reaction with 3 steps

1.1: 97 percent / H₂ / 10 percent Pd/C / ethanol / 72 h / 100 °C / 38786.1 Torr

2.1: 57 percent / aq. KOH; BnEt₃NCl / CH₂Cl₂ / Heating

3.1: LDA / tetrahydrofuran; hexane / 0.5 h / -78 °C

3.2: 78 percent / HMPA / tetrahydrofuran; hexane / 1.33 h / -78 - 23 °C

With potassium hydroxide; N-benzyl-N,N,N-triethylammonium chloride; hydrogen; lithium diisopropyl amide; 10% palladium on active carbon; In tetrahydrofuran; ethanol; hexane; dichloromethane; 3.2: Horner-Wadsworth-Emmons reaction;
DOI:10.1055/s-2001-16808

Reference yield:

: 552-89-6
2-nitro-benzaldehyde

: 375372-35-3
(R)-4-[(E)-2-(2-Isocyano-phenyl)-vinyl]-2,2-dimethyl-oxazolidine-3-carboxylic acid tert-butyl ester

Guidance literature:: Multi-step reaction with 4 steps

1.1: 84 percent / KF / tetrahydrofuran / 2 h / 40 °C

2.1: 97 percent / H₂ / 10 percent Pd/C / ethanol / 72 h / 100 °C / 38786.1 Torr

3.1: 57 percent / aq. KOH; BnEt₃NCl / CH₂Cl₂ / Heating

4.1: LDA / tetrahydrofuran; hexane / 0.5 h / -78 °C

4.2: 78 percent / HMPA / tetrahydrofuran; hexane / 1.33 h / -78 - 23 °C

With potassium fluoride; potassium hydroxide; N-benzyl-N,N,N-triethylammonium chloride; hydrogen; lithium diisopropyl amide; 10% palladium on active carbon; In tetrahydrofuran; ethanol; hexane; dichloromethane; 4.2: Horner-Wadsworth-Emmons reaction;
DOI:10.1055/s-2001-16808