304481-20-7Relevant academic research and scientific papers
Cage-to-Cage Cascade Transformations
Bandi, Sreenivasulu,Chand, Dillip Kumar
, p. 10330 - 10335 (2016/07/21)
A series of Pd2L4-type binuclear self-assembled coordination cages (1–4), where L stands for a nonchelating bidentate ligand, were prepared. The strategies adopted for the synthesis of the cages were: combination of PdIIwith 1) a selected ligand or 2) subcomponents of the ligand. Highly efficient cage-to-cage transformation reactions are demonstrated by suitable covalent modification (from 1 to 2 or 3 or 4) or ligand-exchange reactions (from 1 to 2 or 3 or 4; from 2 to 3 or 4). Thus, new cascade transformations (from 1 to 2 to 3; from 1 to 2 to 4) are achieved beautifully.
Synthesis of novel paracyclophanes with linear P,N-containing spacers
Ignat'eva,Balueva,Karasik,Kulikov,Kozlov,Latypov,Loennecke,Hey-Hawkins,Sinyashin
, p. 1828 - 1837 (2008/09/20)
Condensation of bis(hydroxymethyl)mesityl-and bis(hydroxymethyl) phenylphosphines with N,N′-disubstituted bis(4-aminophenyl)methanes and bis(4-amino-3-carboxyphenyl)methane occurred as covalent self-assembly spontaneously giving a mixture of trans-and cis-diastereomers of 1,5,19,23-tetra-R′-3,21-di-R-1,5,19,23-tetraaza-3,21-diphospha[5.1.5.1] paracyclophanes as the major products. The trans-isomer (R is mesityl; R′ is methyl) was isolated in the individual state and structurally characterized by X-ray diffraction analysis. Sulfurization of macrocyclic diphosphines (R = Ph; R′ is 3-pyridylmethyl or 4-pyridylmethyl) gave the corresponding diphosphine disulfides, the trans-stereoisomer being isolated in the individual state.
