Technology Process of phenyl 2,3-di-O-acetyl-6-O-para-methoxybenzyl-β-D-galactopyranoside
There total 5 articles about phenyl 2,3-di-O-acetyl-6-O-para-methoxybenzyl-β-D-galactopyranoside which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
Multi-step reaction with 5 steps
1.1: HBr; AcOH / CH2Cl2 / 0 - 20 °C
2.1: 40 percent / tetrabutylammonium hydrogensulfate; NaOH / CH2Cl2; H2O
3.1: 96 percent / NaOMe; MeOH / 20 °C
4.1: 99 percent / p-TsOH*H2O / dimethylformamide / 5 h / 50 °C
5.1: pyridine / 20 °C
5.2: 81 percent / NaCNBH3; TFA / pyridine; tetrahydrofuran; CH2Cl2 / 19 h / 20 °C
With
pyridine; methanol; sodium hydroxide; hydrogen bromide; sodium methylate; tetra(n-butyl)ammonium hydrogensulfate; toluene-4-sulfonic acid; acetic acid;
In
dichloromethane; water; N,N-dimethyl-formamide;
2.1: Koenigs-Knorr reaction / 3.1: Zemplen deacetylation;
DOI:10.1021/ja020627c
- Guidance literature:
-
Multi-step reaction with 2 steps
1.1: 99 percent / p-TsOH*H2O / dimethylformamide / 5 h / 50 °C
2.1: pyridine / 20 °C
2.2: 81 percent / NaCNBH3; TFA / pyridine; tetrahydrofuran; CH2Cl2 / 19 h / 20 °C
With
pyridine; toluene-4-sulfonic acid;
In
N,N-dimethyl-formamide;
DOI:10.1021/ja020627c
- Guidance literature:
-
Multi-step reaction with 4 steps
1.1: 40 percent / tetrabutylammonium hydrogensulfate; NaOH / CH2Cl2; H2O
2.1: 96 percent / NaOMe; MeOH / 20 °C
3.1: 99 percent / p-TsOH*H2O / dimethylformamide / 5 h / 50 °C
4.1: pyridine / 20 °C
4.2: 81 percent / NaCNBH3; TFA / pyridine; tetrahydrofuran; CH2Cl2 / 19 h / 20 °C
With
pyridine; methanol; sodium hydroxide; sodium methylate; tetra(n-butyl)ammonium hydrogensulfate; toluene-4-sulfonic acid;
In
dichloromethane; water; N,N-dimethyl-formamide;
1.1: Koenigs-Knorr reaction / 2.1: Zemplen deacetylation;
DOI:10.1021/ja020627c