4H-1-Benzopyran-4-one, 2-[3,4-bis(phenylmethoxy)phenyl]-3-[[(1,1-dimethylethyl)dimethylsilyl]oxy] -2,3-dihydro-5,7-bis(phenylmethoxy)-, (2R,3R)-

Base Information

Chemical Name:4H-1-Benzopyran-4-one, 2-[3,4-bis(phenylmethoxy)phenyl]-3-[[(1,1-dimethylethyl)dimethylsilyl]oxy] -2,3-dihydro-5,7-bis(phenylmethoxy)-, (2R,3R)-
CAS No.:294203-74-0
Molecular Formula:C49H50O7Si
Molecular Weight:779.017
Hs Code.:

4H-1-Benzopyran-4-one,
2-[3,4-bis(phenylmethoxy)phenyl]-3-[[(1,1-dimethylethyl)dimethylsilyl]oxy]
-2,3-dihydro-5,7-bis(phenylmethoxy)-, (2R,3R)-

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Chemical Property of 4H-1-Benzopyran-4-one, 2-[3,4-bis(phenylmethoxy)phenyl]-3-[[(1,1-dimethylethyl)dimethylsilyl]oxy] -2,3-dihydro-5,7-bis(phenylmethoxy)-, (2R,3R)-

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Technology Process of 4H-1-Benzopyran-4-one, 2-[3,4-bis(phenylmethoxy)phenyl]-3-[[(1,1-dimethylethyl)dimethylsilyl]oxy] -2,3-dihydro-5,7-bis(phenylmethoxy)-, (2R,3R)-

There total 5 articles about 4H-1-Benzopyran-4-one, 2-[3,4-bis(phenylmethoxy)phenyl]-3-[[(1,1-dimethylethyl)dimethylsilyl]oxy] -2,3-dihydro-5,7-bis(phenylmethoxy)-, (2R,3R)- 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: 32.0%

: 294203-73-9
(2R,3S,4S)-5,7-Bis-benzyloxy-2-(3,4-bis-benzyloxy-phenyl)-3-(tert-butyl-dimethyl-silanyloxy)-chroman-4-ol

: 294203-74-0
(2R,3R)-5,7-Bis-benzyloxy-2-(3,4-bis-benzyloxy-phenyl)-3-(tert-butyl-dimethyl-silanyloxy)-chroman-4-one

Guidance literature:: With N-methyl-2-indolinone; tetrapropylammonium perruthennate; In diethyl ether; for 16h;
DOI:10.1016/S0040-4039(00)00826-1

Reference yield:

: 20728-73-8
5,7,3',4'-tetra-O-benzyl-(+)-catechin

: 294203-74-0
(2R,3R)-5,7-Bis-benzyloxy-2-(3,4-bis-benzyloxy-phenyl)-3-(tert-butyl-dimethyl-silanyloxy)-chroman-4-one

Guidance literature:: Multi-step reaction with 3 steps

1: 90 percent / imidazole / dimethylformamide / 12 h / 25 °C

2: 76 percent / DDQ; H₂O / CH₂Cl₂ / 1.5 h / 25 °C

3: 32 percent / N-methylmorpholine N-oxide; TPAP / CH₂Cl₂ / 14.5 h / 25 °C

With 1H-imidazole; tetrapropylammonium perruthennate; water; 4-methylmorpholine N-oxide; 2,3-dicyano-5,6-dichloro-p-benzoquinone; In dichloromethane; N,N-dimethyl-formamide;
DOI:10.1016/j.tet.2003.08.076

Reference yield:

: 294203-71-7
[(2R,3S)-5,7-Bis-benzyloxy-2-(3,4-bis-benzyloxy-phenyl)-chroman-3-yloxy]-tert-butyl-dimethyl-silane

: 294203-74-0
(2R,3R)-5,7-Bis-benzyloxy-2-(3,4-bis-benzyloxy-phenyl)-3-(tert-butyl-dimethyl-silanyloxy)-chroman-4-one

Guidance literature:: Multi-step reaction with 2 steps

1: 76 percent / DDQ; H₂O / CH₂Cl₂ / 1.5 h / 25 °C

2: 32 percent / N-methylmorpholine N-oxide; TPAP / CH₂Cl₂ / 14.5 h / 25 °C

With tetrapropylammonium perruthennate; water; 4-methylmorpholine N-oxide; 2,3-dicyano-5,6-dichloro-p-benzoquinone; In dichloromethane;
DOI:10.1016/j.tet.2003.08.076