Technology Process of 4-Thiaprostaglandin E1
There total 6 articles about 4-Thiaprostaglandin E1 which
guide to synthetic route it.
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synthetic route:
- Guidance literature:
-
Multi-step reaction with 3 steps
1: 1) tBuLi; 2) phenylthiocopper(I), hexamethylphosphorus triamide / 1) Et2O, pentane, -78 deg C, 2 h; 2) Et2O, -78 deg C, 1 h; 3) THF, -78 deg C, 1 h, then -40 deg C, 3 h
2: AIBN / 5 h / 60 °C
3: acetic acid / tetrahydrofuran; H2O / 24 h / 40 °C
With
N,N,N,N,N,N-hexamethylphosphoric triamide; 2,2'-azobis(isobutyronitrile); tert.-butyl lithium; copper(I) thiophenolate; acetic acid;
In
tetrahydrofuran; water;
DOI:10.1248/cpb.33.1815
- Guidance literature:
-
With
acetic acid;
In
tetrahydrofuran; water;
at 40 ℃;
for 24h;
Yield given;
DOI:10.1248/cpb.33.1815
- Guidance literature:
-
Multi-step reaction with 4 steps
1: 1) tBuLi; 2) pentynylcopper(I), hexamethylphosphorus triamide / 1) Et2O, pentane, -78 deg C, 2 h; 2) Et2O, -78 deg C, 1 h; 3) Et2O, -78 deg C, 15 min, then -40 deg C, 1 h; 4) Et2O, -40 deg C, 1 h
2: 80 percent / tetrakis(triphenylphosphine)palladium(0) / dimethylformamide / 2 h / Ambient temperature
3: AIBN / 5 h / 60 °C
4: acetic acid / tetrahydrofuran; H2O / 24 h / 40 °C
With
1-pentynyl copper; N,N,N,N,N,N-hexamethylphosphoric triamide; 2,2'-azobis(isobutyronitrile); tert.-butyl lithium; acetic acid;
tetrakis(triphenylphosphine) palladium(0);
In
tetrahydrofuran; water; N,N-dimethyl-formamide;
DOI:10.1248/cpb.33.1815