(S)-4-Methyl-2-phenyl-4,5-dihydro-oxazole-4-carboxylic acid methyl ester

Base Information

Chemical Name:(S)-4-Methyl-2-phenyl-4,5-dihydro-oxazole-4-carboxylic acid methyl ester
CAS No.:177763-02-9
Molecular Formula:C₁₂H₁₃NO₃
Molecular Weight:219.24
Hs Code.:

Synonyms:(S)-4-Methyl-2-phenyl-4,5-dihydro-oxazole-4-carboxylic acid methyl ester

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Chemical Property of (S)-4-Methyl-2-phenyl-4,5-dihydro-oxazole-4-carboxylic acid methyl ester

Chemical Property:

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Technology Process of (S)-4-Methyl-2-phenyl-4,5-dihydro-oxazole-4-carboxylic acid methyl ester

There total 6 articles about (S)-4-Methyl-2-phenyl-4,5-dihydro-oxazole-4-carboxylic acid methyl 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:

: 852945-55-2
((1S,5R,7R)-10,10-Dimethyl-3,3-dioxo-3λ⁶-thia-4-aza-tricyclo[5.2.1.0^1,5]dec-4-yl)-(2-phenyl-4,5-dihydro-oxazol-4-yl)-methanone

: 18107-18-1
diazomethyl-trimethyl-silane

: 74-88-4
methyl iodide

: 177763-02-9
(S)-4-Methyl-2-phenyl-4,5-dihydro-oxazole-4-carboxylic acid methyl ester

: 177763-03-0
(R)-4-Methyl-2-phenyl-4,5-dihydro-oxazole-4-carboxylic acid methyl ester

Guidance literature:: ((1S,5R,7R)-10,10-Dimethyl-3,3-dioxo-3λ⁶-thia-4-aza-tricyclo[5.2.1.0^1,5]dec-4-yl)-(2-phenyl-4,5-dihydro-oxazol-4-yl)-methanone; methyl iodide; With tetrabutylammomium bromide; 1-ethyl-2,2,4,4,4-pentakis(dimethylamino)-2λ⁵,4λ⁵-catenadi(phosphazene); In dichloromethane; at -78 ℃; for 0.0833333h;

With lithium hydroxide; In tetrahydrofuran; water; for 0.166667h;

diazomethyl-trimethyl-silane; In hexane; dichloromethane; for 0.166667h; Title compound not separated from byproducts;
DOI:10.1021/jo050197j

Reference yield:

: 51127-13-0,71963-72-9,87480-74-8,13302-43-7
2-phenyl-4-methyl-4H-oxazolin-5-one

: 177763-02-9
(S)-4-Methyl-2-phenyl-4,5-dihydro-oxazole-4-carboxylic acid methyl ester

Guidance literature:: Multi-step reaction with 3 steps

1: 34 percent / NaH / tetrahydrofuran; dimethylformamide / 0.5 h / 0 °C

2: 48 percent / DIPEA, NMP / 18 h / 55 °C

3: 1.) HBr/AcOH, 2.) DIPEA / 1.) Ac₂O, 70 deg C, 4.5 h, 2.) 50 deg C, overnight

With 1-methyl-pyrrolidin-2-one; hydrogen bromide; sodium hydride; acetic acid; N-ethyl-N,N-diisopropylamine; In tetrahydrofuran; N,N-dimethyl-formamide;
DOI:10.1021/jo952068g

Reference yield:

: 2198-64-3,1205-02-3,90988-29-7
N-Benzoylalanine

: 177763-02-9
(S)-4-Methyl-2-phenyl-4,5-dihydro-oxazole-4-carboxylic acid methyl ester

Guidance literature:: Multi-step reaction with 4 steps

1: DCC / CH₂Cl₂ / 1.) 0 deg C, 30 min, 2.) room temperature, 40 min

2: 34 percent / NaH / tetrahydrofuran; dimethylformamide / 0.5 h / 0 °C

3: 48 percent / DIPEA, NMP / 18 h / 55 °C

4: 1.) HBr/AcOH, 2.) DIPEA / 1.) Ac₂O, 70 deg C, 4.5 h, 2.) 50 deg C, overnight

With 1-methyl-pyrrolidin-2-one; hydrogen bromide; sodium hydride; acetic acid; N-ethyl-N,N-diisopropylamine; dicyclohexyl-carbodiimide; In tetrahydrofuran; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1021/jo952068g