(2-{[1-hydroxy-2,3-bis(1-methylethoxy)-4-oxocyclobut-2-enyl]ethynyl}-5-methylphenyl)carbamic acid 1,1-dimethylethyl ester

Base Information

• Chemical Name: (2-{[1-hydroxy-2,3-bis(1-methylethoxy)-4-oxocyclobut-2-enyl]ethynyl}-5-methylphenyl)carbamic acid 1,1-dimethylethyl ester
• CAS No.: 1038779-19-9
• Molecular Formula: C₂₄H₃₁NO₆
• Molecular Weight: 429.513
• Mol file: 1038779-19-9.mol

Synonyms:

Chemical Property of (2-{[1-hydroxy-2,3-bis(1-methylethoxy)-4-oxocyclobut-2-enyl]ethynyl}-5-methylphenyl)carbamic acid 1,1-dimethylethyl ester

Chemical Property:

Purity/Quality:

Safty Information:

• Pictogram(s):  
• Hazard Codes: 

MSDS Files:

Useful:

Technology Process of (2-{[1-hydroxy-2,3-bis(1-methylethoxy)-4-oxocyclobut-2-enyl]ethynyl}-5-methylphenyl)carbamic acid 1,1-dimethylethyl ester

There total 1 articles about (2-{[1-hydroxy-2,3-bis(1-methylethoxy)-4-oxocyclobut-2-enyl]ethynyl}-5-methylphenyl)carbamic acid 1,1-dimethylethyl 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: 21.0%

(2-ethynyl-5-methylphenyl)carbamic acid 1,1-dimethylethyl ester (1038779-09-7) + diisopropyl squarate (61699-62-5) → (2-{[1-hydroxy-2,3-bis(1-methylethoxy)-4-oxocyclobut-2-enyl]ethynyl}-5-methylphenyl)carbamic acid 1,1-dimethylethyl ester (1038779-19-9)

Guidance literature:

(2-ethynyl-5-methylphenyl)carbamic acid 1,1-dimethylethyl ester; With n-butyllithium; In tetrahydrofuran; at -5 ℃; for 0.25h;

diisopropyl squarate; In tetrahydrofuran; at 20 ℃; for 0.5h; Further stages.;

DOI:10.1016/j.tet.2008.03.025

Reference yield: 81.0%

(2-{[1-hydroxy-2,3-bis(1-methylethoxy)-4-oxocyclobut-2-enyl]ethynyl}-5-methylphenyl)carbamic acid 1,1-dimethylethyl ester (1038779-19-9) → C24H31NO6

Guidance literature:

In toluene; Heating;

DOI:10.1016/j.tet.2008.03.025

upstream raw materials:

(2-ethynyl-5-methylphenyl)carbamic acid 1,1-dimethylethyl ester

diisopropyl squarate