1952 年 72 巻 9 号 p. 1098-1101
The optically active 1-phenyl-2-dimethylaminopropane was led to optically active 1-phenyl-2-dimethylaminopropane methiodide by the ordinary method and then to optically active methochloride. It was then confirmed that the l-1-phenyl-2-dimethylaminopropane methiodide and methochloride derived from the d-compound possessed the same steric configuration as that of natural ephedrine, i.e. they belonged to the L-typebased on alanine. A few theoretical considerations were proposed for the optical rotation of the 1-phenyl-2-aminopropane homologs, in comparison with the norephedrine homologs.