2H-1-Benzopyran-3-ol, 3,4-dihydro-5,7-bis(phenylmethoxy)-2-[3-(phenylmethoxy)phenyl]-, (2S,3S)-

Base Information

Chemical Name:2H-1-Benzopyran-3-ol, 3,4-dihydro-5,7-bis(phenylmethoxy)-2-[3-(phenylmethoxy)phenyl]-, (2S,3S)-
CAS No.:850307-77-6
Molecular Formula:C36H32O5
Molecular Weight:544.647
Hs Code.:

Synonyms:

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Chemical Property of 2H-1-Benzopyran-3-ol, 3,4-dihydro-5,7-bis(phenylmethoxy)-2-[3-(phenylmethoxy)phenyl]-, (2S,3S)-

Chemical Property:

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Technology Process of 2H-1-Benzopyran-3-ol, 3,4-dihydro-5,7-bis(phenylmethoxy)-2-[3-(phenylmethoxy)phenyl]-, (2S,3S)-

There total 8 articles about 2H-1-Benzopyran-3-ol, 3,4-dihydro-5,7-bis(phenylmethoxy)-2-[3-(phenylmethoxy)phenyl]-, (2S,3S)- 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:

: Formic acid (1S,2R)-2-(3-benzyloxy-phenyl)-1-(2,4-bis-benzyloxy-6-hydroxy-benzyl)-2-bromo-ethyl ester

: 850307-77-6
(2S,3S)-cis-5,7-bis(benzyloxy)-2-(3-benzyloxyphenyl)chroman-3-ol

Guidance literature:: With potassium carbonate; In methanol; acetone; at 20 ℃;
DOI:10.1016/j.bmc.2004.12.056

Reference yield:

: 59434-20-7
1,3,5-tri-O-benzylphloroglucinol

: 850307-77-6
(2S,3S)-cis-5,7-bis(benzyloxy)-2-(3-benzyloxyphenyl)chroman-3-ol

Guidance literature:: Multi-step reaction with 8 steps

1: 64 percent / butanethiol; sodium hydride / dimethylformamide / 1.5 h / 150 °C

2: diisopropyl azodicarboxylate; triphenylphosphine / tetrahydrofuran / 0 °C

3: imidazole / 72 h / 20 °C

4: AD-mix-α; methanesulfonamide / 0 °C

5: tetrabutylammonium fluoride / tetrahydrofuran / 4 h / 20 °C

6: PPTS / 1,2-dichloro-ethane / 0.33 h / 20 °C

7: acetyl bromide / CH₂Cl₂ / 0.75 h / -5 - 0 °C

8: K₂CO₃ / acetone; methanol / 20 °C

With 1H-imidazole; AD-mix-α; Acetyl bromide; n-butanethiol; methanesulfonamide; di-isopropyl azodicarboxylate; tetrabutyl ammonium fluoride; pyridinium p-toluenesulfonate; sodium hydride; potassium carbonate; triphenylphosphine; In tetrahydrofuran; methanol; dichloromethane; 1,2-dichloro-ethane; N,N-dimethyl-formamide; acetone; 2: Mitsunobu reaction;
DOI:10.1016/j.bmc.2004.12.056

Reference yield:

: 63604-98-8
1,3-dibenzylphloroglucinol

: 850307-77-6
(2S,3S)-cis-5,7-bis(benzyloxy)-2-(3-benzyloxyphenyl)chroman-3-ol

Guidance literature:: Multi-step reaction with 7 steps

1: diisopropyl azodicarboxylate; triphenylphosphine / tetrahydrofuran / 0 °C

2: imidazole / 72 h / 20 °C

3: AD-mix-α; methanesulfonamide / 0 °C

4: tetrabutylammonium fluoride / tetrahydrofuran / 4 h / 20 °C

5: PPTS / 1,2-dichloro-ethane / 0.33 h / 20 °C

6: acetyl bromide / CH₂Cl₂ / 0.75 h / -5 - 0 °C

7: K₂CO₃ / acetone; methanol / 20 °C

With 1H-imidazole; AD-mix-α; Acetyl bromide; methanesulfonamide; di-isopropyl azodicarboxylate; tetrabutyl ammonium fluoride; pyridinium p-toluenesulfonate; potassium carbonate; triphenylphosphine; In tetrahydrofuran; methanol; dichloromethane; 1,2-dichloro-ethane; acetone; 1: Mitsunobu reaction;
DOI:10.1016/j.bmc.2004.12.056