154593-79-0Relevant academic research and scientific papers
Concise synthetic route to both enantiomeric forms of 2,3,4,4a-tetrahydro[1,3]dioxolo[4,5-j]phenanthridin-6(5H)-one, the tetracyclic skeleton associated with the narcissus alkaloids lycoricidine and narciclasine
Banwell,Cowden,Mackay
, p. 61 - 62 (1994)
Both enantiomeric forms, (S)-4 and (R)-4, of the tetracyclic skeleton associated with the title alkaloids 1 and 2 have been prepared; the key step involved silver isocyanate-promoted ring-opening of gem-dibromocyclopropane 5 and trapping of the resulting
Synthetic studies concerning the crinine alkaloid haemultine
Gao, Nadia,Ma, Xinghua,Petit, Laurent,Schwartz, Brett D.,Banwell, Martin G.,Willis, Anthony C.,Cade, Ian A.,Rae, A. David
, p. 30 - 39 (2013/03/14)
The racemic form, (±)-1, of the structure originally assigned to the crinine alkaloid haemultine has been prepared for the first time. A key step involved the conversion of compound (±)-4 into the isomeric cis-C3a-arylhexahydroindole (±)-3 using a Pd0-cat
The Pd-catalyzed Alder-ene reactions of N-protected and propargylated 1-amino-2-aryl-2-cyclohexenes as a new route to C3a-arylhexahydroindoles: Towards the total synthesis of tazettine
Lehmann, Anna L.,Willis, Anthony C.,Banwell, Martin G.
scheme or table, p. 1665 - 1678 (2011/09/15)
A series of N-protected and propargylated 1-amino-2-aryl-2-cyclohexenes (4) has been prepared. Several of these have been shown to undergo an intramolecular Alder-ene reaction in the presence of palladium acetate and the ligand BBEDA to afford C3a-arylhex
Convergent Routes to the Dioxolophenanthridin-6(5H)-one and 2,3,4,4a-Tetrahydrodioxolophenanthridin-6(5H)-one Nuclei. Application to Syntheses of the Amaryllidaceae Alkaloids Crinasiadine, N-Methylcrinasiadine and Trisphaeridine
Banwell, Martin G.,Cowden, Cameron J.
, p. 2235 - 2254 (2007/10/02)
Convergent routes to the title nuclei, (1) and (6), have been developed.Thus, Suzuki coupling of boronic acid (8) with aryl bromide (9) gave the biarylylcarbamate (7) which, on treatment with phosphorus oxychloride (POCl3), underwent Bischler-Napieralski
