Technology Process of 5,11,17,23-tetrakis<(p-carboxyphenyl)azo>-25,26,27,28-tetrahydroxycalix<4>arene
There total 7 articles about 5,11,17,23-tetrakis<(p-carboxyphenyl)azo>-25,26,27,28-tetrahydroxycalix<4>arene 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
hydrogenchloride; sodium acetate; sodium nitrite;
In
methanol; water; N,N-dimethyl-formamide;
at 2 - 20 ℃;
for 2h;
DOI:10.1002/anie.201813397
- Guidance literature:
-
formaldehyd; 4-(4-hydroxyphenylazo)benzoic acid;
With
sodium hydroxide;
In
diphenylether;
for 3h;
Reflux;
With
sodium tetraborate decahydrate;
In
ethylene glycol;
for 2h;
Reflux;
- Guidance literature:
-
Multi-step reaction with 3 steps
1.1: sodium hydroxide / water / 0.08 h / Microwave irradiation
1.2: 0.25 h / Microwave irradiation
2.1: aluminum (III) chloride; phenol / toluene
3.1: hydrogenchloride; sodium nitrite / 0 - 5 °C
With
hydrogenchloride; aluminum (III) chloride; sodium hydroxide; sodium nitrite; phenol;
In
water; toluene;
DOI:10.1007/s10847-009-9669-8