2-[3,4-bis-(tert-butyl-dimethyl-silanyloxy)-phenyl]-5,7-bis-(tert-butyl-dimethyl-silanyloxy)-chroman-3-one

Base Information

Chemical Name:2-[3,4-bis-(tert-butyl-dimethyl-silanyloxy)-phenyl]-5,7-bis-(tert-butyl-dimethyl-silanyloxy)-chroman-3-one
CAS No.:853687-43-1
Molecular Formula:C₃₉H₆₈O₆Si₄
Molecular Weight:745.307
Hs Code.:

2-[3,4-bis-(<i>tert</i>-butyl-dimethyl-silanyloxy)-phenyl]-5,7-bis-(<i>tert</i>-butyl-dimethyl-silanyloxy)-chroman-3-one

Synonyms:2-[3,4-bis-(tert-butyl-dimethyl-silanyloxy)-phenyl]-5,7-bis-(tert-butyl-dimethyl-silanyloxy)-chroman-3-one

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Chemical Property of 2-[3,4-bis-(tert-butyl-dimethyl-silanyloxy)-phenyl]-5,7-bis-(tert-butyl-dimethyl-silanyloxy)-chroman-3-one

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Technology Process of 2-[3,4-bis-(tert-butyl-dimethyl-silanyloxy)-phenyl]-5,7-bis-(tert-butyl-dimethyl-silanyloxy)-chroman-3-one

There total 3 articles about 2-[3,4-bis-(tert-butyl-dimethyl-silanyloxy)-phenyl]-5,7-bis-(tert-butyl-dimethyl-silanyloxy)-chroman-3-one 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: 91.0%

: 853687-38-4
5,7,3’,4’-O-tetra-tert-butyldimethylsilylepicatechin

: 853687-43-1
2-[3,4-bis-(tert-butyl-dimethyl-silanyloxy)-phenyl]-5,7-bis-(tert-butyl-dimethyl-silanyloxy)-chroman-3-one

Guidance literature:: With phthalic acid dimethyl ester; In dichloromethane; at 0 ℃; for 9h;
DOI:10.1016/j.bmcl.2005.03.063

Reference yield:

: 853687-37-3
(-)-ECG-7TBS

: 853687-43-1
2-[3,4-bis-(tert-butyl-dimethyl-silanyloxy)-phenyl]-5,7-bis-(tert-butyl-dimethyl-silanyloxy)-chroman-3-one

Guidance literature:: Multi-step reaction with 2 steps

1: 80 percent / LiAlH₄ / tetrahydrofuran / 0.5 h / 0 °C

2: 91 percent / DMP / CH₂Cl₂ / 9 h / 0 °C

With lithium aluminium tetrahydride; phthalic acid dimethyl ester; In tetrahydrofuran; dichloromethane; 2: Dess-Martin oxidation;
DOI:10.1016/j.bmcl.2005.03.063

Reference yield:

: 18162-48-6
tert-butyldimethylsilyl chloride

: 853687-43-1
2-[3,4-bis-(tert-butyl-dimethyl-silanyloxy)-phenyl]-5,7-bis-(tert-butyl-dimethyl-silanyloxy)-chroman-3-one

Guidance literature:: Multi-step reaction with 3 steps

1: 91 percent / imidazole / dimethylformamide / 14 h / 20 °C

2: 80 percent / LiAlH₄ / tetrahydrofuran / 0.5 h / 0 °C

3: 91 percent / DMP / CH₂Cl₂ / 9 h / 0 °C

With 1H-imidazole; lithium aluminium tetrahydride; phthalic acid dimethyl ester; In tetrahydrofuran; dichloromethane; N,N-dimethyl-formamide; 3: Dess-Martin oxidation;
DOI:10.1016/j.bmcl.2005.03.063