Technology Process of methyl 23-benzyloxy-3α-hydroxyurs-12-en-28-oate
There total 10 articles about methyl 23-benzyloxy-3α-hydroxyurs-12-en-28-oate which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
With
aluminum isopropoxide;
In
isopropyl alcohol;
for 10h;
Heating;
DOI:10.1021/jo0008688
- Guidance literature:
-
Multi-step reaction with 10 steps
1.1: diethyl ether; tetrahydrofuran
2.1: Jones / acetone
3.1: NH2OH*HCl; NaOAc / methanol; CH2Cl2
4.1: Na2PdCl4; NaOAc / acetic acid / 72 h
4.2: DMAP; Et3N / CH2Cl2 / 0.75 h / 20 °C
4.3: 1.92 g / Pb(OAc)4 / pyridine; tetrahydrofuran; acetic acid / 16 h / 20 °C
5.1: 98 percent / Na2CO3 / methanol / 16 h / 20 °C
6.1: 88 percent / 20percent HCl; NH4OAc / TiCl3 / H2O; tetrahydrofuran / 4 h / 20 °C
7.1: 99 percent / PPTS; MS / benzene / 20 h / Heating
8.1: 94 percent / KH; n-Bu4NI / tetrahydrofuran / 28 h / Heating
9.1: 91 percent / p-TsOH; PPTS / acetone / 48 h / 20 °C
10.1: 72 percent / Al(i-PrO)3 / propan-2-ol / 10 h / Heating
With
sodium tetrachloropalladate(II); hydroxylamine hydrochloride; ammonium acetate; sodium acetate; pyridinium p-toluenesulfonate; aluminum isopropoxide; tetra-(n-butyl)ammonium iodide; potassium hydride; sodium carbonate; toluene-4-sulfonic acid;
titanium(III) chloride;
In
tetrahydrofuran; methanol; diethyl ether; dichloromethane; water; acetic acid; isopropyl alcohol; acetone; benzene;
1.1: Methylation / 2.1: Oxidation / 3.1: oximation / 4.1: complexation / 4.2: Acetylation / 4.3: Oxidation / 5.1: Deacetylation / 6.1: Oxidation / 7.1: Condensation / 8.1: Alkylation / 9.1: deacetalization / 10.1: Reduction;
DOI:10.1021/jo0008688
- Guidance literature:
-
Multi-step reaction with 9 steps
1.1: Jones / acetone
2.1: NH2OH*HCl; NaOAc / methanol; CH2Cl2
3.1: Na2PdCl4; NaOAc / acetic acid / 72 h
3.2: DMAP; Et3N / CH2Cl2 / 0.75 h / 20 °C
3.3: 1.92 g / Pb(OAc)4 / pyridine; tetrahydrofuran; acetic acid / 16 h / 20 °C
4.1: 98 percent / Na2CO3 / methanol / 16 h / 20 °C
5.1: 88 percent / 20percent HCl; NH4OAc / TiCl3 / H2O; tetrahydrofuran / 4 h / 20 °C
6.1: 99 percent / PPTS; MS / benzene / 20 h / Heating
7.1: 94 percent / KH; n-Bu4NI / tetrahydrofuran / 28 h / Heating
8.1: 91 percent / p-TsOH; PPTS / acetone / 48 h / 20 °C
9.1: 72 percent / Al(i-PrO)3 / propan-2-ol / 10 h / Heating
With
sodium tetrachloropalladate(II); hydroxylamine hydrochloride; ammonium acetate; sodium acetate; pyridinium p-toluenesulfonate; aluminum isopropoxide; tetra-(n-butyl)ammonium iodide; potassium hydride; sodium carbonate; toluene-4-sulfonic acid;
titanium(III) chloride;
In
tetrahydrofuran; methanol; dichloromethane; water; acetic acid; isopropyl alcohol; acetone; benzene;
1.1: Oxidation / 2.1: oximation / 3.1: complexation / 3.2: Acetylation / 3.3: Oxidation / 4.1: Deacetylation / 5.1: Oxidation / 6.1: Condensation / 7.1: Alkylation / 8.1: deacetalization / 9.1: Reduction;
DOI:10.1021/jo0008688