Technology Process of 5-cyclopentylidenemethyl-6-(4-methanesulfonyl-phenyl)-benzo[1,3]dioxole
There total 6 articles about 5-cyclopentylidenemethyl-6-(4-methanesulfonyl-phenyl)-benzo[1,3]dioxole which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
cyclopenthyltriphenylphosphonium bromide;
With
potassium tert-butylate;
In
tetrahydrofuran;
at 0 ℃;
for 0.25h;
6-(4-(methylsulfonyl)phenyl)-2H-benzo[d]1,3-dioxolane-5-carbaldehyde;
In
tetrahydrofuran; N,N-dimethyl-formamide;
at 0 - 20 ℃;
DOI:10.1021/jm030268b
- Guidance literature:
-
Multi-step reaction with 6 steps
1.1: 70 percent / bromine; acetic acid; iodine / CS2 / 20 °C
2.1: 88 percent / sodium carbonate; tetrakis(triphenylphosphine)palladium / ethanol / Heating
3.1: 66 percent / sodium borohydride / ethanol / 2 h / 20 °C
4.1: 97 percent / aq. oxone / methanol / 2 h / 20 °C
5.1: 68 percent / alumina; pyridinium chlorochromate / CH2Cl2 / 1 h / 20 °C
6.1: t-BuOK / tetrahydrofuran / 0.25 h / 0 °C
6.2: 72 percent / tetrahydrofuran; dimethylformamide / 0 - 20 °C
With
aluminum oxide; Oxone; sodium tetrahydroborate; tetrakis(triphenylphosphine) palladium(0); potassium tert-butylate; bromine; iodine; sodium carbonate; acetic acid; pyridinium chlorochromate;
In
tetrahydrofuran; methanol; carbon disulfide; ethanol; dichloromethane;
2.1: Suzuki coupling / 6.2: Wittig condensation;
DOI:10.1021/jm030268b
- Guidance literature:
-
Multi-step reaction with 5 steps
1.1: 88 percent / sodium carbonate; tetrakis(triphenylphosphine)palladium / ethanol / Heating
2.1: 66 percent / sodium borohydride / ethanol / 2 h / 20 °C
3.1: 97 percent / aq. oxone / methanol / 2 h / 20 °C
4.1: 68 percent / alumina; pyridinium chlorochromate / CH2Cl2 / 1 h / 20 °C
5.1: t-BuOK / tetrahydrofuran / 0.25 h / 0 °C
5.2: 72 percent / tetrahydrofuran; dimethylformamide / 0 - 20 °C
With
aluminum oxide; Oxone; sodium tetrahydroborate; tetrakis(triphenylphosphine) palladium(0); potassium tert-butylate; sodium carbonate; pyridinium chlorochromate;
In
tetrahydrofuran; methanol; ethanol; dichloromethane;
1.1: Suzuki coupling / 5.2: Wittig condensation;
DOI:10.1021/jm030268b