protostephanine

protostephanine Struktur
549-28-0
CAS-Nr.
549-28-0
Englisch Name:
protostephanine
Synonyma:
protostephanine;6,7,8,9-Tetrahydro-2,3,10,12-tetramethoxy-7-methyl-5H-dibenz[d,f]azonine;5H-Dibenz[d,f]azonine, 6,7,8,9-tetrahydro-2,3,10,12-tetramethoxy-7-methyl-
CBNumber:
CB41481015
Summenformel:
C21H27NO4
Molgewicht:
357.44
MOL-Datei:
549-28-0.mol

protostephanine Eigenschaften

Schmelzpunkt:
84-86° (Pecherer); mp 75° (Kondo)
Siedepunkt:
518.5±50.0 °C(Predicted)
Dichte
1.095±0.06 g/cm3(Predicted)
pka
8.75±0.20(Predicted)

Sicherheit

protostephanine Chemische Eigenschaften,Einsatz,Produktion Methoden

Beschreibung

A Stephania alkaloid, this base is found in S. japonica Miers. It forms colourless prisms from MeOH which contain solvent of crystallization, m.p. 75°C. The solvent may be removed under vacuum when the dry alkaloid has a higher melting point of 90-S°C. It is optically inactive and yields crystalline saits, e.g. the hydrochloride, m.p. 150°C (dec.); platinichloride, orange prisms, m.p. 223°C (dec.); methiodide, m.p. 220-loC and the methomethylsulphate, m.p. 235°C after sintering at 227°C. The structure has recently been confirmed by a synthesis which follows a route related to the biosynthetic pathway.

Einzelnachweise

Kondo, Watanabe., J. Pharrn. Soc., Japan, 58,46 (1938)
Kondo, Takeda., Chern. Abstr., 49, 1076 (1955)
Synthesis: Battersby et al., Chern. Cornrnun., 20, 1214 (1968)

protostephanine Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


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  • protostephanine
  • 6,7,8,9-Tetrahydro-2,3,10,12-tetramethoxy-7-methyl-5H-dibenz[d,f]azonine
  • 5H-Dibenz[d,f]azonine, 6,7,8,9-tetrahydro-2,3,10,12-tetramethoxy-7-methyl-
  • 549-28-0
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