Tetrahedron Letters p. 2099 - 2102 (1983)
Update date:2022-08-05
Topics:
Gnecco Medina, D. H.
Grierson, D. S.
Husson, H.-P.
The ladybug alkaloids 4 and 17 of the adaline series were synthesized via intramolecular Mannich reaction of the intermediate iminium-enols 13, generated from the corresponding 2-cyano-2'-alkyl-6- (propan-2-one ethylene ketal) piperidines 11 and 12.
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(1983)Doi:10.1007/BF00506110
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(2005)
