The crystal structure of coclaurine hydrobromide monohydrate and the absolute configuration of coclaurine.
Abstract The structure and absolute configuration of coclaurine has been determined by X-ray analysis of its hydrobromide monohydrate. The (+)-enantiomer has the D-configuration. The chirality of the molecular structure is correlated with circular dichroism measurements.
Chemosystematics of the lauraceae
Abstract The various chemical constituents of the Lauraceae are discussed in relation to the taxonomy of the family. Although there is a great paucity of data, the variation in the arylpropanoids, alkaloids, flavanoids and terpene constituents is in general in agreement with the subdivision of the family put forward by Kostermans.
A synthesis of laudanine and (±)-pseudocodamine: Resolution into the optical isomers
Abstract By application of the Bischler-Napieralski reaction, and protection of the phenolic hydroxyl group by benzoylation, laudanine and (±)-pseudocodamine were synthesized. The benzoyl bases were resolved easily with tartaric acid. (+)-Pseudocodamine belongs to the same series as (+)-laudanosine.