Technology Process of 2-Benzo[1,3]dioxol-5-yl-7-benzyloxy-3,6-dimethoxy-chromen-4-one
There total 5 articles about 2-Benzo[1,3]dioxol-5-yl-7-benzyloxy-3,6-dimethoxy-chromen-4-one which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
Multi-step reaction with 4 steps
1: 2.8 g / K2CO3, KJ / acetone / 6 h / Heating
2: 1.) pyridine, aq. KOH, aq. potassium persulphate, 2.) sodium bisulphite, conc. HCl (d = 1.18) / 2.) 60-70 deg C, 30 min.
3: 1.) sodium piperonylate, 2.) aq. KOH / 1.) 190-200 deg C oil-bath, 12 mm, 4 h, 2.) ethyl alcohol, reflux, 1 h
4: potassium carbonate / acetone / 3 h / Heating
With
pyridine; hydrogenchloride; potassium hydroxide; potassium peroxomonosulphate; 3,4-methylenedioxybenzoic acid sodium salt; potassium carbonate; sodium hydrogensulfite;
In
acetone;
- Guidance literature:
-
Multi-step reaction with 3 steps
1: 1.) pyridine, aq. KOH, aq. potassium persulphate, 2.) sodium bisulphite, conc. HCl (d = 1.18) / 2.) 60-70 deg C, 30 min.
2: 1.) sodium piperonylate, 2.) aq. KOH / 1.) 190-200 deg C oil-bath, 12 mm, 4 h, 2.) ethyl alcohol, reflux, 1 h
3: potassium carbonate / acetone / 3 h / Heating
With
pyridine; hydrogenchloride; potassium hydroxide; potassium peroxomonosulphate; 3,4-methylenedioxybenzoic acid sodium salt; potassium carbonate; sodium hydrogensulfite;
In
acetone;
- Guidance literature:
-
Multi-step reaction with 2 steps
1: 1.) sodium piperonylate, 2.) aq. KOH / 1.) 190-200 deg C oil-bath, 12 mm, 4 h, 2.) ethyl alcohol, reflux, 1 h
2: potassium carbonate / acetone / 3 h / Heating
With
potassium hydroxide; 3,4-methylenedioxybenzoic acid sodium salt; potassium carbonate;
In
acetone;
