1121-14-8Relevant academic research and scientific papers
Convergent, short synthesis of the muscarinic superagonist iperoxo
Kloeckner, Jessica,Schmitz, Jens,Holzgrabe, Ulrike
, p. 3470 - 3472 (2010)
Up to now the availability of iperoxo, an important superagonist of the muscarinic acetylcholine receptors, was limited because the synthesis of its precursor, the iperoxo base, was characterized by low yields, laborious chromatography and low reproducibility. Here we report a robust convergent three-step synthesis by means of a Mannich reaction and nucleophilic substitution at the 3-nitro-Δ2-isoxazoline. The new route combines short reaction time, high reproducibility and an overall yield increased from 12% to 42%.
QUINOLINONE AND BENZOXAZINE DERIVATIVES AS MUSCARINIC M1 AND/OR M4 RECEPTOR AGONISTS
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Page/Page column 33, (2020/07/05)
This invention relates to compounds having activity as muscarinic M1 or M1 and M4 receptor agonists which are useful in the treatment of diseases mediated by the muscarinic M1 and M4 receptors. Also p
Nitroisoxazoles by manganese(IV) oxide oxidation of nitro-4,5-dihydroisoxazoles
Diamantini,Duranti,Tontini
, p. 1104 - 1108 (2007/10/02)
Aryl and alkyl substituted 3- and 5-nitroisoxazole derivatives were prepared from the appropriate 3- and 5-nitro-4,5-dihydroisoxazoles using manganese(IV) oxide as oxidizing agent. Some of the 3-nitro-4-substituted isoxazoles were prepared directly by rea
Synthesis and Reaction of Tetranitroethylene
Baum, Kurt,Tzeng, Dongjaw
, p. 2736 - 2739 (2007/10/02)
Tetranitroethylene was isolated in 50 percent yield by flash vacuum pyrolysis of heksanitroethane.Critical for the isolation is a trap temperature such that dinitrogen tetraoxide is not condensed.Tetranitroethylene reacted quantitatively with anthracene to give 11,11,12,12,-tetranitro-9,10-dihydro-9,10-ethanoanthracene, and competition experiments with anthracene showed that tetranitroethylene is at least an order of magnitude more reactive than tetracyanoethylene.Tetranitroethylene reacted with cyclopentadiene to give 5,5,6,6-tetranitronorbornene and with ethanolto give ethyl dinitroacetate.Acetylenes and olefins reacted with tetranitroethylene to give 3-nitroisoxazoles and 3-nitro-2-isoxazolines, respectively.
