A one-step synthesis of 2,6-disubstituted anilines from aliphatic compounds
作者:P. Camps、C. Jaime、J. Molas
DOI:10.1016/s0040-4039(01)92940-5
日期:1981.1
A one-step synthesis of 2,6-disubstituted anilines by reaction of enamines derived from acyclic ketones of the type RCH2COCH2R' and 1,3-dichloro-1,3-dimethoxypropane is described.
The invention concerns cationic complexes of Technetium-99m with bidentate ligands (L), including complexes having the formulae [Tc(NO) X L.sub.2 ].sup.+ and [Tc L.sub.3 ].sup.+, which are of interest as heart imaging agents. The ligands are characterized by having the formula Y.sub.2 QZQY.sub.2, where each Q is phosphorus or arsenic, Z is a 2 or 3 carbon atom linking group, and at least one of the groups Y and Z includes at least one --COC--ether group.
Protopopowa; Skoldinow, Zhurnal Obshchei Khimii, 1959, vol. 29, p. 3982,3986; engl. Ausg. S. 3942, 3945
作者:Protopopowa、Skoldinow
DOI:——
日期:——
The conformation of (1R,2S,4R,5S)-2,4-dimethoxybicyclo[3.3.1]nonan-9-one and some related compounds
作者:P. Camps、C. Jaime
DOI:10.1002/mrc.1270140306
日期:1980.9
AbstractA mixture of stereoisomers of 2,4‐dimethoxybicyclo[3.3.1]nonan‐9‐one was prepared, separated by column chromatography and characterized by 60 MHz 1H NMR spectroscopy using Eu(fod)3. A double chair conformation with axial methoxyl groups is established for (1R,2S,4R,5S)‐2,4‐dimethoxybicyclo[3.3.1]‐nonan‐9‐one on the basis of the J(12), J(2,H‐3 exo) and J(2,3 endo) values and the chemical shifts for H‐2(4). The conformation of some related compounds is subsequently inferred.