Technology Process of (E)-6,10-anhydro-7,8,9,11-tetra-O-benzyl-2,4,5-trideoxy-1,2-N,O-isopropylidene-2-(tert-butoxycarbonylamino)-D-threo-L-galacto-undec-4-en-3-ulose
There total 11 articles about (E)-6,10-anhydro-7,8,9,11-tetra-O-benzyl-2,4,5-trideoxy-1,2-N,O-isopropylidene-2-(tert-butoxycarbonylamino)-D-threo-L-galacto-undec-4-en-3-ulose 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
4 A molecular sieve; copper(II) bis(trifluoromethanesulfonate); dicyclohexyl-carbodiimide;
In
acetonitrile;
at 20 ℃;
for 1.08333h;
DOI:10.1021/jo981861h
- Guidance literature:
-
Multi-step reaction with 8 steps
1: 92 percent / triethylamine; 4-(N,N-dimethylamino)pyridine / dimethylformamide / 1.5 h / 0 - 20 °C
2: 75 percent / LiAlH4 / tetrahydrofuran / 0.83 h / -50 °C
3: 96 percent / 10-camphorsulfonic acid / CH2Cl2 / 1.5 h / 0 - 20 °C
4: 96 percent / n-Bu4NF*3H2O / tetrahydrofuran / 6 h / 20 °C
5: 94 percent / 4-Angstroem molecular sieves; pyridinium chlorochromate / CH2Cl2 / 0.33 h / 20 °C
6: 82 percent / 4-Angstroem molecular sieves; triethylamine / CH2Cl2 / 1 h / -15 °C
7: 78 percent / 4-Angstroem molecular sieves; BF3*Et2O / CH2Cl2 / 0.83 h / -30 °C
8: 81 percent / 1,3-dicyclohexylcarbodiimide; 4-Angstroem molecular sieves; Cu(OTf)2 / acetonitrile / 1.08 h / 20 °C
With
dmap; lithium aluminium tetrahydride; 4 A molecular sieve; boron trifluoride diethyl etherate; (1S)-10-camphorsulfonic acid; tetrabutyl ammonium fluoride; copper(II) bis(trifluoromethanesulfonate); triethylamine; dicyclohexyl-carbodiimide; pyridinium chlorochromate;
In
tetrahydrofuran; dichloromethane; N,N-dimethyl-formamide; acetonitrile;
1: silylation / 2: Reduction / 3: Cyclization / 4: desilylation / 5: Oxidation / 6: silylation / 7: Mukaiyama condensation; desilylation / 8: Dehydration;
DOI:10.1021/jo981861h
- Guidance literature:
-
Multi-step reaction with 7 steps
1: 75 percent / LiAlH4 / tetrahydrofuran / 0.83 h / -50 °C
2: 96 percent / 10-camphorsulfonic acid / CH2Cl2 / 1.5 h / 0 - 20 °C
3: 96 percent / n-Bu4NF*3H2O / tetrahydrofuran / 6 h / 20 °C
4: 94 percent / 4-Angstroem molecular sieves; pyridinium chlorochromate / CH2Cl2 / 0.33 h / 20 °C
5: 82 percent / 4-Angstroem molecular sieves; triethylamine / CH2Cl2 / 1 h / -15 °C
6: 78 percent / 4-Angstroem molecular sieves; BF3*Et2O / CH2Cl2 / 0.83 h / -30 °C
7: 81 percent / 1,3-dicyclohexylcarbodiimide; 4-Angstroem molecular sieves; Cu(OTf)2 / acetonitrile / 1.08 h / 20 °C
With
lithium aluminium tetrahydride; 4 A molecular sieve; boron trifluoride diethyl etherate; (1S)-10-camphorsulfonic acid; tetrabutyl ammonium fluoride; copper(II) bis(trifluoromethanesulfonate); triethylamine; dicyclohexyl-carbodiimide; pyridinium chlorochromate;
In
tetrahydrofuran; dichloromethane; acetonitrile;
1: Reduction / 2: Cyclization / 3: desilylation / 4: Oxidation / 5: silylation / 6: Mukaiyama condensation; desilylation / 7: Dehydration;
DOI:10.1021/jo981861h