Technology Process of phosphoric acid 4-[2-(2-benzyloxy-propyl)-[1,3]dioxolan-2-ylmethyl]-5-oxo-1,4,4a,5,8,8a-hexahydro-naphthalen-2-yl ester diethyl ester
There total 9 articles about phosphoric acid 4-[2-(2-benzyloxy-propyl)-[1,3]dioxolan-2-ylmethyl]-5-oxo-1,4,4a,5,8,8a-hexahydro-naphthalen-2-yl ester diethyl ester which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
Multi-step reaction with 9 steps
1.1: 64 percent / BF3*Et2O / toluene / 12 h / 20 °C
2.1: LiN(TMS)2 / tetrahydrofuran / 0.08 h / 20 °C
2.2: 68 percent / 30 percent H2O2; aq. NaHCO3 / CH2Cl2 / 36 h / 20 °C
3.1: 81 percent / NaBH4; CeCl3*7H2O; NaOEt / ethanol / 12 h / 0 - 40 °C
4.1: 86 percent / (COCl)2; Et3N / dimethylsulfoxide; CH2Cl2 / 1 h / -78 - 20 °C
5.1: 81 percent / tetrahydrofuran / 1 h / -10 °C
6.1: 84 percent / o-iodoxybenzoic acid / toluene; dimethylsulfoxide / 3 h / 20 °C
7.1: 85 percent / diisopinocampheylchloroborane; Et3N / CH2Cl2 / 4 h / -78 - 20 °C
8.1: 75 percent / TMSOTf / CH2Cl2; cyclohexane / 2 h / 20 °C
9.1: 75 percent / TMSOTf / CH2Cl2 / 1 h / -78 - 0 °C
With
sodium tetrahydroborate; cerium(III) chloride; oxalyl dichloride; trimethylsilyl trifluoromethanesulfonate; diisopinocamphenylchloroborane; boron trifluoride diethyl etherate; sodium ethanolate; triethylamine; lithium hexamethyldisilazane; 1-hydroxy-3H-benz[d][1,2]iodoxole-1,3-dione;
In
tetrahydrofuran; ethanol; dichloromethane; cyclohexane; dimethyl sulfoxide; toluene;
5.1: Grignard reaction;
DOI:10.7164/antibiotics.55.1076
- Guidance literature:
-
Multi-step reaction with 5 steps
1: 81 percent / tetrahydrofuran / 1 h / -10 °C
2: 84 percent / o-iodoxybenzoic acid / toluene; dimethylsulfoxide / 3 h / 20 °C
3: 85 percent / diisopinocampheylchloroborane; Et3N / CH2Cl2 / 4 h / -78 - 20 °C
4: 75 percent / TMSOTf / CH2Cl2; cyclohexane / 2 h / 20 °C
5: 75 percent / TMSOTf / CH2Cl2 / 1 h / -78 - 0 °C
With
trimethylsilyl trifluoromethanesulfonate; diisopinocamphenylchloroborane; triethylamine; 1-hydroxy-3H-benz[d][1,2]iodoxole-1,3-dione;
In
tetrahydrofuran; dichloromethane; cyclohexane; dimethyl sulfoxide; toluene;
1: Grignard reaction;
DOI:10.7164/antibiotics.55.1076
- Guidance literature:
-
Multi-step reaction with 6 steps
1: 86 percent / (COCl)2; Et3N / dimethylsulfoxide; CH2Cl2 / 1 h / -78 - 20 °C
2: 81 percent / tetrahydrofuran / 1 h / -10 °C
3: 84 percent / o-iodoxybenzoic acid / toluene; dimethylsulfoxide / 3 h / 20 °C
4: 85 percent / diisopinocampheylchloroborane; Et3N / CH2Cl2 / 4 h / -78 - 20 °C
5: 75 percent / TMSOTf / CH2Cl2; cyclohexane / 2 h / 20 °C
6: 75 percent / TMSOTf / CH2Cl2 / 1 h / -78 - 0 °C
With
oxalyl dichloride; trimethylsilyl trifluoromethanesulfonate; diisopinocamphenylchloroborane; triethylamine; 1-hydroxy-3H-benz[d][1,2]iodoxole-1,3-dione;
In
tetrahydrofuran; dichloromethane; cyclohexane; dimethyl sulfoxide; toluene;
2: Grignard reaction;
DOI:10.7164/antibiotics.55.1076