Application of 246047-72-3. Let’s face it, organic chemistry can seem difficult to learn. Especially from a beginner’s point of view. Like 246047-72-3, Name is (1,3-Bis(2,4,6-trimethylphenyl)-2-imidazolidinylidene)dichloro(phenylmethylene)(tricyclohexylphosphine)ruthenium. In a document type is Article, introducing its new discovery.
Synthetic approaches to (1RS,2SR,6SR)-7-arylmethyl-2-alkoxymethyl-4,7-diaza-9-oxabicyclo[4.3.0]nonan-8-ones, potentially selective muscarinic M1 receptor agonists, by hydration of 1,2,5,6-tetrahydropyridines were investigated. 3-Substituted N-tosyl-1,2,5,6-tetrahydropyridines were prepared by ring-closing metathesis (RCM). The direct hydration of these by hydroboration-oxidation was not usefully selective, but cis-3-hydroxymethyl-4-tert-butyldimethylsilyloxy-N-tosylpiperidine was prepared from 3-hydroxymethyl-N-tosyl-1,2,5,6-tetrahydropyridine by epoxidation, mesylation, reductive elimination, silylation and hydroboration-oxidation. Problems were encountered during attempts to prepare 3-alkoxymethyl-1,2,5,6-tetrahydropyridines with protected amino and cyclobutyl substituents at C5 by ring-closing metathesis, perhaps because of steric hindrance. Nevertheless interesting chemistry was encountered during the synthesis of the RCM precursors including a novel coupling via a 2-ethenyl-N-nosylaziridine and the formation of an oxaazathiocin by an intramolecular substitution of the nitro group of an N-nosyl protected amine by a proximate hydroxyl substituent.
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Reference：
Highly efficient and robust molecular ruthenium catalysts for water oxidation,
Catalysts | Special Issue : Ruthenium Catalysts – MDPI