Technology Process of 5-((3aS,5R,6R,6aS)-5-(tert-butyldimethylsilyloxy)-6-((E)-4-m-tolylbut-1-enyl)-1,3a,4,5,6,6a-hexahydropentalen-2-yl)pentanal
There total 20 articles about 5-((3aS,5R,6R,6aS)-5-(tert-butyldimethylsilyloxy)-6-((E)-4-m-tolylbut-1-enyl)-1,3a,4,5,6,6a-hexahydropentalen-2-yl)pentanal which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
With
oxalyl dichloride; dimethyl sulfoxide; triethylamine;
In
dichloromethane;
at -78 - 0 ℃;
for 2.5h;
DOI:10.1021/ol0515762
- Guidance literature:
-
Multi-step reaction with 6 steps
1.1: Mg; dibromoethane / diethyl ether / 4 h / 10 °C
1.2: LiCl / Pd(PPh3)4 / diethyl ether
2.1: Et2AlCl / CH2Cl2; toluene / 3 h / -50 °C
3.1: 2.2 g / oxalyl chloride; DMSO; triethylamine / CH2Cl2 / 2.5 h / -78 - 0 °C
4.1: KHMDS / 1,2-dimethoxy-ethane; toluene / 0.75 h / -60 °C
4.2: 95.4 percent / 1,2-dimethoxy-ethane; toluene / -60 - 20 °C
5.1: 85 percent / DDQ; H2O / CH2Cl2 / 0.5 h
6.1: 100 percent / oxalyl chloride; DMSO; triethylamine / CH2Cl2 / 2.5 h / -78 - 0 °C
With
oxalyl dichloride; 1,1-Dibromoethane; water; diethylaluminium chloride; potassium hexamethylsilazane; magnesium; dimethyl sulfoxide; triethylamine; 2,3-dicyano-5,6-dichloro-p-benzoquinone;
In
1,2-dimethoxyethane; diethyl ether; dichloromethane; toluene;
3.1: Swern oxidation / 4.2: Julia-Kocienski olefination / 6.1: Swern oxidation;
DOI:10.1021/ol0515762
- Guidance literature:
-
Multi-step reaction with 8 steps
1.1: 97 percent / triethylamine; DMAP / CH2Cl2 / 5 h / 20 °C
2.1: KHMDS / tetrahydrofuran; toluene / 5 h / -108 °C
2.2: tetrahydrofuran; toluene / -108 - 20 °C
3.1: Mg; dibromoethane / diethyl ether / 4 h / 10 °C
3.2: LiCl / Pd(PPh3)4 / diethyl ether
4.1: Et2AlCl / CH2Cl2; toluene / 3 h / -50 °C
5.1: 2.2 g / oxalyl chloride; DMSO; triethylamine / CH2Cl2 / 2.5 h / -78 - 0 °C
6.1: KHMDS / 1,2-dimethoxy-ethane; toluene / 0.75 h / -60 °C
6.2: 95.4 percent / 1,2-dimethoxy-ethane; toluene / -60 - 20 °C
7.1: 85 percent / DDQ; H2O / CH2Cl2 / 0.5 h
8.1: 100 percent / oxalyl chloride; DMSO; triethylamine / CH2Cl2 / 2.5 h / -78 - 0 °C
With
dmap; oxalyl dichloride; 1,1-Dibromoethane; water; diethylaluminium chloride; potassium hexamethylsilazane; magnesium; dimethyl sulfoxide; triethylamine; 2,3-dicyano-5,6-dichloro-p-benzoquinone;
In
tetrahydrofuran; 1,2-dimethoxyethane; diethyl ether; dichloromethane; toluene;
5.1: Swern oxidation / 6.2: Julia-Kocienski olefination / 8.1: Swern oxidation;
DOI:10.1021/ol0515762