Technology Process of (2S,3R,4R,5S)-3,4,5-Tris-benzyloxy-2-(tert-butyl-diphenyl-silanyloxymethyl)-piperidine
There total 10 articles about (2S,3R,4R,5S)-3,4,5-Tris-benzyloxy-2-(tert-butyl-diphenyl-silanyloxymethyl)-piperidine which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
(2S,3R,4R,5S)-1-Allyl-3,4,5-tris-benzyloxy-2-(tert-butyl-diphenyl-silanyloxymethyl)-piperidine;
With
carbonochloridic acid 1-chloro-ethyl ester;
In
1,2-dichloro-ethane;
at 90 ℃;
for 24h;
With
methanol;
at 80 ℃;
for 21h;
DOI:10.1016/S0040-4039(02)00250-2
- Guidance literature:
-
Multi-step reaction with 6 steps
1.1: 85 percent / NaH; 18-crown-6 / tetrahydrofuran / 19 h / 70 °C
2.1: 70 percent / NBS / acetonitrile; H2O / 2 h
3.1: 92 percent / NaBH4 / ethanol / 20 h
4.1: 80 percent / Et3N; DMAP / CH2Cl2 / 3 h / -15 °C
5.1: 73 percent / 39 h / 70 °C
6.1: ACE-Cl / 1,2-dichloro-ethane / 24 h / 90 °C
6.2: 82 percent / MeOH / 21 h / 80 °C
With
dmap; sodium tetrahydroborate; N-Bromosuccinimide; 18-crown-6 ether; carbonochloridic acid 1-chloro-ethyl ester; sodium hydride; triethylamine;
In
tetrahydrofuran; ethanol; dichloromethane; water; 1,2-dichloro-ethane; acetonitrile;
DOI:10.1016/S0040-4039(02)00250-2
- Guidance literature:
-
Multi-step reaction with 7 steps
1.1: 94 percent / DBU / tetrahydrofuran / 22 h
2.1: 85 percent / NaH; 18-crown-6 / tetrahydrofuran / 19 h / 70 °C
3.1: 70 percent / NBS / acetonitrile; H2O / 2 h
4.1: 92 percent / NaBH4 / ethanol / 20 h
5.1: 80 percent / Et3N; DMAP / CH2Cl2 / 3 h / -15 °C
6.1: 73 percent / 39 h / 70 °C
7.1: ACE-Cl / 1,2-dichloro-ethane / 24 h / 90 °C
7.2: 82 percent / MeOH / 21 h / 80 °C
With
dmap; sodium tetrahydroborate; N-Bromosuccinimide; 18-crown-6 ether; carbonochloridic acid 1-chloro-ethyl ester; sodium hydride; 1,8-diazabicyclo[5.4.0]undec-7-ene; triethylamine;
In
tetrahydrofuran; ethanol; dichloromethane; water; 1,2-dichloro-ethane; acetonitrile;
DOI:10.1016/S0040-4039(02)00250-2