## Abstract The synthesis of ^15^Nβlabelled nornicotine **2** and ^15^Nβlabelled nicotine **1** is described via the reductive aminocyclization of a 1,4βketoaldehyde with a corresponding amine in the presence of sodium cyanoborohydride. Yields of 30% and 26%, respectively, were obtained from 3βbrom
Convenient syntheses of N-CD3 labelled nicotine and nicotine analogues
β Scribed by Jeffrey I. Seeman; Henry V. Secor; Gary Forrest
- Publisher
- John Wiley and Sons
- Year
- 1979
- Tongue
- French
- Weight
- 321 KB
- Volume
- 16
- Category
- Article
- ISSN
- 0022-2135
No coin nor oath required. For personal study only.
β¦ Synopsis
Two procedures for the preparation of N-CD3 labelled nicotine and nicotine analogues are reported. These include: (a) the deuteroiodomethylation of the lithium amide of the corresponding secondary m i n e ; and (b) the alkylation of the corresponding cyclic imine followed by sodium cyanoborohydride reduction of the resulting alkyl iminium salt. Products having both high chemical and isotopic purity are formed.
π SIMILAR VOLUMES
A v a r i e t y o f deuterium l a b e l l e d tobacco a l k a l o i d s has been prepared f o r metabolic studies. myosmine w i t h sodium borodeuteride provided n o r n i c o t i n e -2'-dl. exchange w i t h deuterium oxide t o myosmine-3',3'-d2 which could be reduced t o nornicotine-3',3'-d2 and n
## Abstract A new synthesis of a tritiated photosensitive nicotinic agonist ([^3^H]βAC5), which uses [^3^H~2~] as the source of radioactivity, is described. Several improvements have been introduced to establish a reliable fiveβstep synthesis displaying satisfactory overall yields (45%) and requiri