170026-25-2Relevant academic research and scientific papers
Synthesis and spectroscopic studies of novel photochromic benzodithiacrown ethers and their complexes
Alfimov, Michael V.,Fedorov, Yurii V.,Fedorova, Olga A.,Gromov, Sergey S.,Hester, Ronald E.,et al.
, p. 1441 - 1448 (2007/10/03)
New styryl dyes containing the benzodithia-18-crown-6 fragment have been synthesized and their photoisomerization reactions and complexes with Hg2+ and Ag+ cations have been investigated by steady-state electronic and resonance Raman
Synthesis of formyl derivatives of benzocrown ethers containing N, S, and O heteroatoms in the macrocycle
Gromov, S. P.,Fedorova, O. A.,Vedernikov, A. I.,Samoshin, V. V.,Zefirov, N. S.,Alfimov, M. V.
, p. 116 - 123 (2007/10/02)
A method for the synthesis of 4'-bromobenzodithia-15(18)-crown-5(6) and 4'-bromobenzodiaza-15(18)-crown-5(6) by condensation of 3,4-di(2'-haloethoxy)bromobenzene with polyoxaalkanes containing terminal SH or NHMe groups was suggested.The method for the synthesis of formyl derivatives of benzocrowns containing N, S, and O heteroatoms in the macrocycle based on the metallation of appropriate bromo derivatives with BunLi followed by treatment of the resulting organolithium intermediates with DMF was developed.Oximes and semicarbazones of benzaldehydes containing a crown ether fragment were obtained, and their transformation into the original aldehydes by treatment with KNO2 in an acid medium was studied. - Key words: 4'-bromobenzocrowns, synthesis, metallation; 4'-formylbenzocrown ethers; semicarbazones and oximes of 4'-formylbenzocrown ethers.
