Technology Process of (2E,5S,6S,7E)-5-(tert-butyldiphenylsilyloxy)-6-(methoxymethoxy)-8-[(2S)-4-methyl-3,6-dihydro-2H-pyran-2-yl]octa-2,7-dien-1-ol
There total 27 articles about (2E,5S,6S,7E)-5-(tert-butyldiphenylsilyloxy)-6-(methoxymethoxy)-8-[(2S)-4-methyl-3,6-dihydro-2H-pyran-2-yl]octa-2,7-dien-1-ol which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
Multi-step reaction with 8 steps
1.1: t-BuOK / tetrahydrofuran / 1 h / 20 - 45 °C
1.2: 92 percent / tetrahydrofuran / 1.5 h / 20 °C
2.1: Cl2(PCy3)2Ru=CHPh / tetrahydrofuran / 20 °C
3.1: 84 percent / HCl gas / CH2Cl2 / 0.5 h / -10 °C
4.1: Et3N; pyr*SO3 / CH2Cl2; dimethylsulfoxide / 2 h / 0 - 5 °C
5.1: 96 percent / LiCl; Et3N / tetrahydrofuran / 0 - 20 °C
6.1: NaBH4; CeCl3 / methanol / 0.08 h
6.2: 51 mg / iPr2NEt / dimethylformamide / 3.5 h / 0 - 20 °C
7.1: 89 percent / aq. HCl / methanol / 0.67 h / 0 - 20 °C
8.1: 70 percent / Red-Al(R) / diethyl ether; toluene / 20 °C
With
hydrogenchloride; sodium tetrahydroborate; cerium(III) chloride; potassium tert-butylate; sulfur trioxide pyridine complex; triethylamine; sodium bis(2-methoxyethoxy)aluminium dihydride; lithium chloride;
Grubbs catalyst first generation;
In
tetrahydrofuran; methanol; diethyl ether; dichloromethane; dimethyl sulfoxide; toluene;
4.1: Parikh-Doering oxidation;
DOI:10.1021/jo026743f
- Guidance literature:
-
Multi-step reaction with 7 steps
1.1: Cl2(PCy3)2Ru=CHPh / tetrahydrofuran / 20 °C
2.1: 84 percent / HCl gas / CH2Cl2 / 0.5 h / -10 °C
3.1: Et3N; pyr*SO3 / CH2Cl2; dimethylsulfoxide / 2 h / 0 - 5 °C
4.1: 96 percent / LiCl; Et3N / tetrahydrofuran / 0 - 20 °C
5.1: NaBH4; CeCl3 / methanol / 0.08 h
5.2: 51 mg / iPr2NEt / dimethylformamide / 3.5 h / 0 - 20 °C
6.1: 89 percent / aq. HCl / methanol / 0.67 h / 0 - 20 °C
7.1: 70 percent / Red-Al(R) / diethyl ether; toluene / 20 °C
With
hydrogenchloride; sodium tetrahydroborate; cerium(III) chloride; sulfur trioxide pyridine complex; triethylamine; sodium bis(2-methoxyethoxy)aluminium dihydride; lithium chloride;
Grubbs catalyst first generation;
In
tetrahydrofuran; methanol; diethyl ether; dichloromethane; dimethyl sulfoxide; toluene;
3.1: Parikh-Doering oxidation;
DOI:10.1021/jo026743f