Technology Process of 4-Nitro-benzoic acid (2S,3R,5S)-2-[(E)-2-(5,5-dimethyl-[1,3]dioxan-2-yl)-vinyl]-5-(R)-oxiranyl-tetrahydro-furan-3-yl ester
There total 8 articles about 4-Nitro-benzoic acid (2S,3R,5S)-2-[(E)-2-(5,5-dimethyl-[1,3]dioxan-2-yl)-vinyl]-5-(R)-oxiranyl-tetrahydro-furan-3-yl ester which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
With
di-isopropyl azodicarboxylate; triphenylphosphine;
In
tetrahydrofuran;
at 20 ℃;
for 11h;
DOI:10.1021/jo048863o
- Guidance literature:
-
Multi-step reaction with 9 steps
1.1: Et3N; NaI / pentane; acetonitrile / Heating
2.1: Br2 / dimethylformamide / 1.5 h / -55 - -30 °C
2.2: 41 percent / dimethylformamide / -55 - 20 °C
3.1: 74 percent / K2CO3; NaI; CuI / acetone; heptane / 0.75 h / 20 °C
4.1: 61 percent / LiAlH4 / diethyl ether / 6 h / 20 °C
5.1: 90 percent / Ti(OPr-i)4; diethyl L-tartrate / CH2Cl2 / 14.5 h / -30 - -20 °C
6.1: 96 percent / DMAP; Et3M / CH2Cl2 / 3.5 h / 20 °C
7.1: 47 percent / AD-mix-α; MeSO2NH2 / 2-methyl-propan-2-ol; H2O / 42 h / 0 °C
8.1: 72 percent / K2CO3 / methanol / 2 h / 0 °C
9.1: 92 percent / PPh3; diisopropyl azodicarboxylate / tetrahydrofuran / 11 h / 20 °C
With
titanium(IV) isopropylate; dmap; AD-mix-α; copper(l) iodide; lithium aluminium tetrahydride; diethyl (2R,3R)-tartrate; methanesulfonamide; di-isopropyl azodicarboxylate; bromine; potassium carbonate; triethylamine; triphenylphosphine; sodium iodide;
In
tetrahydrofuran; methanol; diethyl ether; n-heptane; dichloromethane; water; N,N-dimethyl-formamide; acetone; acetonitrile; tert-butyl alcohol; pentane;
5.1: Sharpless asymmetric epoxidation / 7.1: Sharpless asymmetric dihydroxylation;
DOI:10.1021/jo048863o
- Guidance literature:
-
Multi-step reaction with 8 steps
1.1: Br2 / dimethylformamide / 1.5 h / -55 - -30 °C
1.2: 41 percent / dimethylformamide / -55 - 20 °C
2.1: 74 percent / K2CO3; NaI; CuI / acetone; heptane / 0.75 h / 20 °C
3.1: 61 percent / LiAlH4 / diethyl ether / 6 h / 20 °C
4.1: 90 percent / Ti(OPr-i)4; diethyl L-tartrate / CH2Cl2 / 14.5 h / -30 - -20 °C
5.1: 96 percent / DMAP; Et3M / CH2Cl2 / 3.5 h / 20 °C
6.1: 47 percent / AD-mix-α; MeSO2NH2 / 2-methyl-propan-2-ol; H2O / 42 h / 0 °C
7.1: 72 percent / K2CO3 / methanol / 2 h / 0 °C
8.1: 92 percent / PPh3; diisopropyl azodicarboxylate / tetrahydrofuran / 11 h / 20 °C
With
titanium(IV) isopropylate; dmap; AD-mix-α; copper(l) iodide; lithium aluminium tetrahydride; diethyl (2R,3R)-tartrate; methanesulfonamide; di-isopropyl azodicarboxylate; bromine; potassium carbonate; triphenylphosphine; sodium iodide;
In
tetrahydrofuran; methanol; diethyl ether; n-heptane; dichloromethane; water; N,N-dimethyl-formamide; acetone; tert-butyl alcohol;
4.1: Sharpless asymmetric epoxidation / 6.1: Sharpless asymmetric dihydroxylation;
DOI:10.1021/jo048863o