3',3''-dibromo-4-methanesulfonyloxy-4',4''-dimethoxy-5',5''-bis(methoxycarbonyl)-1,1-diphenyl-1-butene

Base Information

Chemical Name:3',3''-dibromo-4-methanesulfonyloxy-4',4''-dimethoxy-5',5''-bis(methoxycarbonyl)-1,1-diphenyl-1-butene
CAS No.:207743-02-0
Molecular Formula:C₂₃H₂₄Br₂O₉S
Molecular Weight:636.312
Hs Code.:

Synonyms:3',3''-dibromo-4-methanesulfonyloxy-4',4''-dimethoxy-5',5''-bis(methoxycarbonyl)-1,1-diphenyl-1-butene

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Chemical Property of 3',3''-dibromo-4-methanesulfonyloxy-4',4''-dimethoxy-5',5''-bis(methoxycarbonyl)-1,1-diphenyl-1-butene

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Technology Process of 3',3''-dibromo-4-methanesulfonyloxy-4',4''-dimethoxy-5',5''-bis(methoxycarbonyl)-1,1-diphenyl-1-butene

There total 3 articles about 3',3''-dibromo-4-methanesulfonyloxy-4',4''-dimethoxy-5',5''-bis(methoxycarbonyl)-1,1-diphenyl-1-butene 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: 77.0%

: 124-63-0
methanesulfonyl chloride

: 207743-00-8
3',3''-dibromo-4-hydroxy-4',4''-dimethoxy-5',5''-bis(methoxycarbonyl)-1,1-diphenyl-1-butene

: 207743-02-0
3',3''-dibromo-4-methanesulfonyloxy-4',4''-dimethoxy-5',5''-bis(methoxycarbonyl)-1,1-diphenyl-1-butene

Guidance literature:: With triethylamine; In dichloromethane; at 0 ℃; for 3h;
DOI:10.1021/jm9800595

Reference yield:

: 159499-98-6
[3',3''-dibromo-4',4''-dimethoxy-5',5''-di(methoxycarbonyl)diphenyl]methanone

: 207743-02-0
3',3''-dibromo-4-methanesulfonyloxy-4',4''-dimethoxy-5',5''-bis(methoxycarbonyl)-1,1-diphenyl-1-butene

Guidance literature:: Multi-step reaction with 3 steps

1: 1.) sodium bis(trimethylsilyl)amide / 1.) THF, 30 min, 2.) THF, RT, 24 h

2: 70 percent / tetra-n-butylammonium fluoride / tetrahydrofuran / 5.5 h / 0 °C

3: 77 percent / Et₃N / CH₂Cl₂ / 3 h / 0 °C

With tetrabutyl ammonium fluoride; sodium hexamethyldisilazane; triethylamine; In tetrahydrofuran; dichloromethane;
DOI:10.1021/jm9800595

Reference yield:

: 207742-99-2
3',3''-dibromo-4',4''-dimethoxy-5',5''-bis(methoxycarbonyl)-1,1-diphenyl-4-[(tert-butyldiphenylsilyl)oxy]-1-butene

: 207743-02-0
3',3''-dibromo-4-methanesulfonyloxy-4',4''-dimethoxy-5',5''-bis(methoxycarbonyl)-1,1-diphenyl-1-butene

Guidance literature:: Multi-step reaction with 2 steps

1: 70 percent / tetra-n-butylammonium fluoride / tetrahydrofuran / 5.5 h / 0 °C

2: 77 percent / Et₃N / CH₂Cl₂ / 3 h / 0 °C

With tetrabutyl ammonium fluoride; triethylamine; In tetrahydrofuran; dichloromethane;
DOI:10.1021/jm9800595