N-(2,5-dibromo-3,4-di-tert-butyl-1-oxo-2,5-dihydro-1H-1λ⁶-thiophen-1-ylidene)-4-methyl-benzenesulfonamide

Base Information

• Chemical Name: N-(2,5-dibromo-3,4-di-tert-butyl-1-oxo-2,5-dihydro-1H-1λ⁶-thiophen-1-ylidene)-4-methyl-benzenesulfonamide
• CAS No.: 547741-33-3
• Molecular Formula: C₁₉H₂₇Br₂NO₃S₂
• Molecular Weight: 541.368

Synonyms:N-(2,5-dibromo-3,4-di-tert-butyl-1-oxo-2,5-dihydro-1H-1λ⁶-thiophen-1-ylidene)-4-methyl-benzenesulfonamide

Chemical Property of N-(2,5-dibromo-3,4-di-tert-butyl-1-oxo-2,5-dihydro-1H-1λ⁶-thiophen-1-ylidene)-4-methyl-benzenesulfonamide

Chemical Property:

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Technology Process of N-(2,5-dibromo-3,4-di-tert-butyl-1-oxo-2,5-dihydro-1H-1λ⁶-thiophen-1-ylidene)-4-methyl-benzenesulfonamide

There total 3 articles about N-(2,5-dibromo-3,4-di-tert-butyl-1-oxo-2,5-dihydro-1H-1λ⁶-thiophen-1-ylidene)-4-methyl-benzenesulfonamide 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: 84.0%

3,4-di-tert-butyl-1-[(p-toluenesulfonyl)imino]-1,1-dihydrothiophene 1-oxide (226927-24-8) → N-(2,5-dibromo-3,4-di-tert-butyl-1-oxo-2,5-dihydro-1H-1λ6-thiophen-1-ylidene)-4-methyl-benzenesulfonamide (547741-33-3)

Guidance literature:

With bromine; In dichloromethane; at 20 ℃; for 15h;

DOI:10.1246/bcsj.76.619

Reference yield: 72.0%

[N-(p-tolylsulfonyl)imino]phenyliodinane (55962-05-5) + (1S,2R,5S)-2,5-Dibromo-3,4-di-tert-butyl-2,5-dihydro-thiophene 1-oxide (547741-31-1) → N-(2,5-dibromo-3,4-di-tert-butyl-1-oxo-2,5-dihydro-1H-1λ6-thiophen-1-ylidene)-4-methyl-benzenesulfonamide (547741-33-3)

Guidance literature:

With tetrakis(actonitrile)copper(I) hexafluorophosphate; In acetonitrile; at 20 ℃; for 4h;

DOI:10.1246/bcsj.76.619

Reference yield:

3,4-Di-tert-butylthiophene S-oxide (118888-09-8) → N-(2,5-dibromo-3,4-di-tert-butyl-1-oxo-2,5-dihydro-1H-1λ6-thiophen-1-ylidene)-4-methyl-benzenesulfonamide (547741-33-3)

Guidance literature:

Multi-step reaction with 2 steps

1: 37 percent / Br₂ / CH₂Cl₂ / 1 h / 20 °C

2: 72 percent / [Cu(MeCN)4]PF₆ / acetonitrile / 4 h / 20 °C

With tetrakis(actonitrile)copper(I) hexafluorophosphate; bromine; In dichloromethane; acetonitrile;

DOI:10.1246/bcsj.76.619

upstream raw materials:

[N-(p-tolylsulfonyl)imino]phenyliodinane

(1S,2R,5S)-2,5-Dibromo-3,4-di-tert-butyl-2,5-dihydro-thiophene 1-oxide

3,4-di-tert-butyl-1-[(p-toluenesulfonyl)imino]-1,1-dihydrothiophene 1-oxide

3,4-Di-tert-butylthiophene S-oxide

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