(2R,3S)-5,7-bis(benzyloxy)-2-(3',4'-dimethoxyphenyl)chroman-3-yl acetate

Base Information

Chemical Name:(2R,3S)-5,7-bis(benzyloxy)-2-(3',4'-dimethoxyphenyl)chroman-3-yl acetate
CAS No.:443926-55-4
Molecular Formula:C₃₃H₃₂O₇
Molecular Weight:540.613
Hs Code.:

Synonyms:(2R,3S)-5,7-bis(benzyloxy)-2-(3',4'-dimethoxyphenyl)chroman-3-yl acetate

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Chemical Property of (2R,3S)-5,7-bis(benzyloxy)-2-(3',4'-dimethoxyphenyl)chroman-3-yl acetate

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Technology Process of (2R,3S)-5,7-bis(benzyloxy)-2-(3',4'-dimethoxyphenyl)chroman-3-yl acetate

There total 6 articles about (2R,3S)-5,7-bis(benzyloxy)-2-(3',4'-dimethoxyphenyl)chroman-3-yl acetate 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: 85.0%

: 100-39-0
benzyl bromide

: 443926-54-3
(2R,3S)-3',4'-dimethoxyphenyl-5,7-dihydroxychroman-3-yl acetate

: 443926-55-4
(2R,3S)-5,7-bis(benzyloxy)-2-(3',4'-dimethoxyphenyl)chroman-3-yl acetate

Guidance literature:: With potassium carbonate; In N,N-dimethyl-formamide; at 0 - 20 ℃; for 12h;
DOI:10.1039/b107340k

Reference yield:

: 85443-48-7
(2R,3S)-2-(2,2-diphenylbenzo[1,3]dioxol-5-yl)chroman-3,5,7-triol

: 443926-55-4
(2R,3S)-5,7-bis(benzyloxy)-2-(3',4'-dimethoxyphenyl)chroman-3-yl acetate

Guidance literature:: Multi-step reaction with 5 steps

1: 90 percent / pyridine / 10 h / 20 °C

2: H₂ / 10percent Pd(OH)2/C / tetrahydrofuran / 12 h / 20 °C

3: 202 mg / K₂CO₃ / acetone / 5 h / Heating

4: 90 percent / aq. Na₂SO₃ / methanol / 3 h / 20 °C

5: 85 percent / K₂CO₃ / dimethylformamide / 12 h / 0 - 20 °C

With pyridine; hydrogen; potassium carbonate; sodium sulfite; 10percent Pd(OH)2/C; In tetrahydrofuran; methanol; N,N-dimethyl-formamide; acetone;
DOI:10.1039/b107340k

Reference yield:

: 89329-08-8
acetic acid 3,5-diacetoxy-2-(2,2-diphenylbenzo[1,3]dioxol-5-yl)chroman-7-yl ester

: 443926-55-4
(2R,3S)-5,7-bis(benzyloxy)-2-(3',4'-dimethoxyphenyl)chroman-3-yl acetate

Guidance literature:: Multi-step reaction with 4 steps

1: H₂ / 10percent Pd(OH)2/C / tetrahydrofuran / 12 h / 20 °C

2: 202 mg / K₂CO₃ / acetone / 5 h / Heating

3: 90 percent / aq. Na₂SO₃ / methanol / 3 h / 20 °C

4: 85 percent / K₂CO₃ / dimethylformamide / 12 h / 0 - 20 °C

With hydrogen; potassium carbonate; sodium sulfite; 10percent Pd(OH)2/C; In tetrahydrofuran; methanol; N,N-dimethyl-formamide; acetone;
DOI:10.1039/b107340k