Technology Process of C21H31BrO3
There total 4 articles about C21H31BrO3 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
pyridinium p-toluenesulfonate;
In
acetone;
at 20 ℃;
for 3h;
chemoselective reaction;
Inert atmosphere;
DOI:10.1021/ja2041964
- Guidance literature:
-
Multi-step reaction with 2 steps
1: tetramethylammonium triacetoxyborohydride / acetic acid; acetonitrile / -40 - 20 °C / Inert atmosphere
2: pyridinium p-toluenesulfonate / acetone / 3 h / 20 °C / Inert atmosphere
With
pyridinium p-toluenesulfonate; tetramethylammonium triacetoxyborohydride;
In
acetic acid; acetone; acetonitrile;
DOI:10.1021/ja2041964
- Guidance literature:
-
Multi-step reaction with 3 steps
1.1: titanium(IV) isopropylate; titanium tetrachloride; N-ethyl-N,N-diisopropylamine / dichloromethane / 0.5 h / -78 °C / Inert atmosphere
1.2: 1 h / -78 °C / Inert atmosphere
1.3: -78 - 20 °C / Inert atmosphere
2.1: tetramethylammonium triacetoxyborohydride / acetic acid; acetonitrile / -40 - 20 °C / Inert atmosphere
3.1: pyridinium p-toluenesulfonate / acetone / 3 h / 20 °C / Inert atmosphere
With
titanium(IV) isopropylate; pyridinium p-toluenesulfonate; titanium tetrachloride; N-ethyl-N,N-diisopropylamine; tetramethylammonium triacetoxyborohydride;
In
dichloromethane; acetic acid; acetone; acetonitrile;
1.1: Aldol condensation;
DOI:10.1021/ja2041964
