Chemistry of crown ethers. Synthesis of new crown ethers containing a pyridazine ring
β Scribed by T. R. Akopyan; E. G. Paronikyan
- Publisher
- Springer US
- Year
- 1997
- Tongue
- English
- Weight
- 231 KB
- Volume
- 33
- Category
- Article
- ISSN
- 0009-3122
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π SIMILAR VOLUMES
A series of benzo-crown ethers containing the thiazole subcyclic moity have been synthesized. Reaction of 1,2-bis(thioamidomethyloxy)benzene 2 with ethyl bromopyruvate in ethanol provided 1,2-bis(thiazolyl)benzene \(4(80 \%)\) along with thiazole \(5(14 \%)\). Reduction of 4 with lithium aluminum hy
The first phosphorus-containing crown ethers with regularly alternating arylene and phosphorus acid residues have been obtained. Structural peculiarities and some chemical properties of these compounds have been studied. Rhodium complexes of new phosphorus-containing macrocycles have been prepared.
## Abstract Crown ethers containing a thiazole subcyclic unit are prepared from the reactions of 1,3βbis[2(4βhydroxymethylthiazoyl)]benzene with diβ__p__βtosylates of corresponding di, tri, tetra, pentaethylene glycols in the presence of potassium hydride. However, if the cavity size in the ring sy