Technology Process of 2-ethylidene-3-oxo-4,5-diphenyl-pent-4-enoic acid ethyl ester
There total 3 articles about 2-ethylidene-3-oxo-4,5-diphenyl-pent-4-enoic acid ethyl 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:
-
4,5-diphenyl-3-oxo-4-pentenoic acid ethyl ester; acetaldehyde;
With
tetrachloromethane; tetrachlorobis(tetrahydrofuran)titanium(IV);
In
tetrahydrofuran;
at 0 ℃;
With
pyridine;
In
tetrahydrofuran;
at 0 - 20 ℃;
DOI:10.1021/ol036133h
- Guidance literature:
-
Multi-step reaction with 3 steps
1.1: oxalyl chloride; dimethylformamide / CH2Cl2 / 3 h / 0 °C
2.1: n-butyllithium; diisopropylamine / hexane; tetrahydrofuran / 0.5 h / -78 °C
2.2: 48 percent / hexane; tetrahydrofuran / -78 °C
3.1: titanium(IV) chloride tetrahydrofuran complex; CCl4 / tetrahydrofuran / 0 °C
3.2: 55 percent / pyridine / tetrahydrofuran / 0 - 20 °C
With
tetrachloromethane; n-butyllithium; tetrachlorobis(tetrahydrofuran)titanium(IV); oxalyl dichloride; diisopropylamine; N,N-dimethyl-formamide;
In
tetrahydrofuran; hexane; dichloromethane;
DOI:10.1021/ol036133h
- Guidance literature:
-
Multi-step reaction with 2 steps
1.1: n-butyllithium; diisopropylamine / hexane; tetrahydrofuran / 0.5 h / -78 °C
1.2: 48 percent / hexane; tetrahydrofuran / -78 °C
2.1: titanium(IV) chloride tetrahydrofuran complex; CCl4 / tetrahydrofuran / 0 °C
2.2: 55 percent / pyridine / tetrahydrofuran / 0 - 20 °C
With
tetrachloromethane; n-butyllithium; tetrachlorobis(tetrahydrofuran)titanium(IV); diisopropylamine;
In
tetrahydrofuran; hexane;
DOI:10.1021/ol036133h
