ISSN:
0170-2041
Schlagwort(e):
Alkaloids, polycyclic aromatic
;
Cleistopholine
;
Sampangine
;
Chemistry
;
Organic Chemistry
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
Notizen:
Polycyclic Aromatic Alkaloids, I. - Synthesis of Cleistopholine and SampangineCleistopholine (4) is prepared in a one-pot synthesis by Diels-Alder cycloaddition of 1 to 2, followed by thermal elimination of dimethylamine. Reaction of 4 with tripiperidinomethane or dimethylformamide diethyl acetal yields the enamines 5a/5b, which, without further purification, give sampangine (6) on heating with ammonium chloride in glacial acetic acid.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/jlac.198919890117