Technology Process of 2H-1-Benzopyran, 5-methoxy-2-methyl-2-(4-methyl-3-pentenyl)-7-pentyl-
There total 8 articles about 2H-1-Benzopyran, 5-methoxy-2-methyl-2-(4-methyl-3-pentenyl)-7-pentyl- which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
Multi-step reaction with 7 steps
1: 63 percent / magnesium iodide etherate / benzene / 1.5 h / Heating
2: 54 percent / potassium carbonate / dimethylformamide / 8 h / 130 °C
3: 88 percent / lithium aluminium hydride / diethyl ether / 0.5 h / Heating
4: 68 percent / thionyl chloride, pyridine / benzene / 1 h / Heating
5: 77 percent / dimethylformamide / 0.5 h / Heating
6: 44 percent / DIBALH / diethyl ether; cyclohexane / 1.) -78 deg C, 30 min, 2.) RT, 3 h
7: 1.) BuLi / 1.) ether, hexane, 2 h, 2.) ether, a) 1 h, b) reflux, 4 h
With
pyridine; lithium aluminium tetrahydride; n-butyllithium; thionyl chloride; magnesium iodide diethyletherate; diisobutylaluminium hydride; potassium carbonate;
In
diethyl ether; cyclohexane; N,N-dimethyl-formamide; benzene;
DOI:10.1246/bcsj.68.305
- Guidance literature:
-
Multi-step reaction with 6 steps
1: 54 percent / potassium carbonate / dimethylformamide / 8 h / 130 °C
2: 88 percent / lithium aluminium hydride / diethyl ether / 0.5 h / Heating
3: 68 percent / thionyl chloride, pyridine / benzene / 1 h / Heating
4: 77 percent / dimethylformamide / 0.5 h / Heating
5: 44 percent / DIBALH / diethyl ether; cyclohexane / 1.) -78 deg C, 30 min, 2.) RT, 3 h
6: 1.) BuLi / 1.) ether, hexane, 2 h, 2.) ether, a) 1 h, b) reflux, 4 h
With
pyridine; lithium aluminium tetrahydride; n-butyllithium; thionyl chloride; diisobutylaluminium hydride; potassium carbonate;
In
diethyl ether; cyclohexane; N,N-dimethyl-formamide; benzene;
DOI:10.1246/bcsj.68.305
- Guidance literature:
-
Multi-step reaction with 4 steps
1: 68 percent / thionyl chloride, pyridine / benzene / 1 h / Heating
2: 77 percent / dimethylformamide / 0.5 h / Heating
3: 44 percent / DIBALH / diethyl ether; cyclohexane / 1.) -78 deg C, 30 min, 2.) RT, 3 h
4: 1.) BuLi / 1.) ether, hexane, 2 h, 2.) ether, a) 1 h, b) reflux, 4 h
With
pyridine; n-butyllithium; thionyl chloride; diisobutylaluminium hydride;
In
diethyl ether; cyclohexane; N,N-dimethyl-formamide; benzene;
DOI:10.1246/bcsj.68.305