Substituted Tetralins VI: Tentative Assignment of Absolute Stereochemistry of 1-Methyl-1-phenyl-1,2,3,4-tetrahydro-3-naphthoic Acid and N,N,1-Trimethyl-1-phenyl-1,2,3,4-tetrahydro-3-naphthylamine Isomers
作者:D.R. Galpin、E.M. Kandeel、A.R. Martin
DOI:10.1002/jps.2600671009
日期:1978.10
The absolute configurations of the enantiomers of N,N,1-trimethyl-cis- and trans-1-phenyl-1,2,3,4-tetrahydro-3-naphthylamines (Ia and Ib) were assigned tentatively from the circular dichroism spectrum of a bridged ketone derived by cyclization of optically active 1-methyl-cis-1-phenyl-1,2,3,4-tetrahydro-3-naphthoic acid (IIa). Thus, (--)-IIa and the corresponding amine, (--)-Ia, were assigned the (2S
N,N,1-三甲基-顺-和反-1-苯基-1,2,3,4-四氢-3-萘胺(Ia和Ib)的对映体的绝对构型由圆二色性光谱暂定旋光的1-甲基-顺式-1-苯基-1,2,3,4-四氢-3-萘甲酸(IIa)的环化反应得到的桥联酮的合成 因此,(-)-IIa和相应的胺(-)-Ia被指定为(2S,4R)-构型。(-)-IIa通过其甲酯的差向异构化产生了反酸(-)-IIb,它确定了(-)-IIb和相应的胺(-)-Ib的绝对构型为(2R,4R)。