Strychnos 1990 - 2004 - Crops for the Future

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Author Title Year Source title Reference Bonjoch, J., J. Quirante, D. Sole, J. Castells, M. Galceran and J. Bosch Functionalized 2-azabicyclo(3.3.1)nonanes .14. 8-aryl-2-azabicyclo[3.3.1]nonan-7 1991 Tetrahedron 47(25): 4417-4428 Abstract The synthesis of 8-aryl-2-azabicyclo[3.3.1]nonan-7-ones (7) by acid cyclization of 4-(3-aryl-2- oxopropyl)-2-piperidinecarbonitriles (5) is reported. Bicyclic alpha-aril-beta-amino ketones 7 easily undergo a retro-Michael ring opening to give the corresponding 2-arylcyclohexenones 8. Author Title Year Source title Reference Bosch, J., M. Salas, M. Amat, M. Alvarez, I. Morgo and B. Adrover Studies on the synthesis of Strychnos indole alkaloids 1991 Tetrahedron 47(28): 5269-5276 Abstract Tetracycles 3b-d, having the ABCD ring substructure of Strychnos alkaloids and a N(b)- (formylmethyl) substituent protected as an oxime or hydrazone derivative, have been prepared by nucleophilic addition of the enolate of indoleacetic ester 1 to pyridinium salts 2b-d followed by acid cyclization. The same one-pot, two-step sequence allowed the preparation of tetracycle 3f, which incorporates an alpha-methoxyacrylate chain at the piperidine beta-position.
Author Title Year Source title Reference Burger BV; Petersen WGB Semiochemicals of the Scarabaeinae .3. Identification of the attractant for the dun 1991 Zeitschrift Fur Naturforschung C-a Journal of Biosciences 46(11-12): 1073-1079 Abstract Following the observation that the non-ball-rolling dung beetle Pachylomerus femoralis (Kirby) rolled the flesh-covered seeds from the fruit of the spineless monkey orange tree, Strychnos madagascariensis Poiret, an investigation into the chemical attractants of this fruit was made. Using headspace gas chromatography with electroantennographic and flame ionization detection in parallel, followed by GC-MS analysis, 1-butanol, methyl butanoate, ethyl 2-methylpropanoate, ethyl butanoate, butyl ethanoate, ethyl 2-methylbutanoate, propyl butanoate, butyl propanoate, methyl hexanoate, butyl 2-methylpropanoate, and butyl butanoate were identified as the constituents of the attractant. It was found that P. femoralis beetles were attracted to a mixture of the synthetic compounds about as strongly as to the fresh fruit. The beetles were also equally attracted to the fruit and to horse dung in areas where ripe fruit was not available. In areas permeated with the smell of the ripe fruit the horse dung retained its attractiveness, whereas no beetles were caught in traps b a i t e d w i t h f r u i t . Author Title Year Source title Reference De, B. and N. G. Bisset Separation of Strychnos nux vomica alkaloids by high-performance liquid-chroma 1991 Journal of Chromatography 587(2): 318-320 Abstract The common alkaloids present in Strychnos nux-vomica L. were separated using normal-phase highp e r f o r m a n c e l i q u i d c h r o m a t o g r a p h y .
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