Technology Process of (4S,2'S,4'S)-acetic acid 4-hydroxy-4-(2'-phenyl-[1,3]dioxan-4'-yl)but-2-ynyl ester
There total 1 articles about (4S,2'S,4'S)-acetic acid 4-hydroxy-4-(2'-phenyl-[1,3]dioxan-4'-yl)but-2-ynyl ester 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:
- Guidance literature:
-
With
zinc trifluoromethanesulfonate; (+)-N-methylephedrine; triethylamine;
In
toluene;
at 20 ℃;
for 1.5h;
DOI:10.1021/ja047190o
- Guidance literature:
-
Multi-step reaction with 9 steps
1: i-Pr2NEt / CH2Cl2 / 20 °C
2: K2CO3; methanol / 0.5 h / 0 °C
3: 1.42 g / H2; quinoline / Lindlar's catalyst / methanol / 24 h / 20 °C
4: IBX; DMSO / 1 h / 20 °C
5: 1.10 g / PPh3; Et3N / CH2Cl2 / 0.75 h / 0 °C
6: 88 percent / n-Bu3SnH; Pd(PPh3)4 / benzene / 20 °C
7: 75 percent / DIBALH / CH2Cl2; toluene / 0.17 h / 0 °C
8: NaHMDS / tetrahydrofuran / 5 h / -20 - 0 °C
9: 355 mg / TBAF / tetrahydrofuran / 1.5 h / 0 °C
With
quinoline; methanol; tetrakis(triphenylphosphine) palladium(0); tetrabutyl ammonium fluoride; hydrogen; tri-n-butyl-tin hydride; sodium hexamethyldisilazane; diisobutylaluminium hydride; potassium carbonate; dimethyl sulfoxide; triethylamine; N-ethyl-N,N-diisopropylamine; triphenylphosphine; 1-hydroxy-3H-benz[d][1,2]iodoxole-1,3-dione;
Lindlar's catalyst;
In
tetrahydrofuran; methanol; dichloromethane; toluene; benzene;
DOI:10.1021/ja047190o
- Guidance literature:
-
Multi-step reaction with 8 steps
1: i-Pr2NEt / CH2Cl2 / 20 °C
2: K2CO3; methanol / 0.5 h / 0 °C
3: 1.42 g / H2; quinoline / Lindlar's catalyst / methanol / 24 h / 20 °C
4: IBX; DMSO / 1 h / 20 °C
5: 1.10 g / PPh3; Et3N / CH2Cl2 / 0.75 h / 0 °C
6: 88 percent / n-Bu3SnH; Pd(PPh3)4 / benzene / 20 °C
7: 75 percent / DIBALH / CH2Cl2; toluene / 0.17 h / 0 °C
8: 93 percent / Pd(PPh3)4; aq. Cs2CO3 / tetrahydrofuran / 4 h / Heating
With
quinoline; methanol; tetrakis(triphenylphosphine) palladium(0); hydrogen; tri-n-butyl-tin hydride; diisobutylaluminium hydride; potassium carbonate; caesium carbonate; dimethyl sulfoxide; triethylamine; N-ethyl-N,N-diisopropylamine; triphenylphosphine; 1-hydroxy-3H-benz[d][1,2]iodoxole-1,3-dione;
Lindlar's catalyst;
In
tetrahydrofuran; methanol; dichloromethane; toluene; benzene;
8: Suzuki cross-coupling;
DOI:10.1021/ja047190o