101341-45-1Relevant articles and documents
Iron-catalysed 1,2-acyl migration of tertiary α-azido ketones and 2-azido-1,3-dicarbonyl compounds
Yang, Tonghao,Lin, Yajun,Yang, Chaoqun,Yu, Wei
supporting information, p. 6097 - 6102 (2019/11/20)
Iron-catalysed 1,2-acyl migration of tertiary α-azido ketones and 2-azido-1,3-dicarbonyl compounds provides a simple and atom-economical approach toward enamides and isoquinolones. This paper reports two catalyst systems for these transformations which employ iron(ii) complexes [Fe(dpbz)]Br2 (dpbz = 1,2-bis(diphenylphosphino)benzene) and FeBr2/Et3N, respectively. [Fe(dpbz)]Br2 was found to be highly effective at converting 2-azido-2,3-dihydro-1H-inden-1-ones to isoquinolones. The reagent combination of FeBr2/Et3N, on the other hand, exhibited a broader catalytic scope, owing to the beneficial effect of Et3N. This latter catalyst system enables 2-azido-2-methyl-1,3-dicarbonyl compounds to be converted to the corresponding enamides under mild conditions in good yields.
Access to β-keto esters by palladium-catalyzed carbonylative coupling of aryl halides with monoester potassium malonates
Korsager, Signe,Nielsen, Dennis U.,Taaning, Rolf H.,Skrydstrup, Troels
supporting information, p. 9763 - 9766 (2013/09/23)
New tricks for an old dog: The Pd-catalyzed carbonylative α-arylation of monoethyl potassium malonates with aryl bromides and reactive aryl chlorides provides a simple and direct route to aryl β-ketoesters. Because only stoichiometric amounts of carbon monoxide are employed, the method is ideal for the introduction of carbon isotopes into more complex structures. Copyright
Rh(II)-carbenoid mediated 2H-azirine ring-expansion as a convenient route to non-fused photo- and thermochromic 2H-1,4-oxazines
Rostovskii, Nikolai V.,Novikov, Mikhail S.,Khlebnikov, Alexander F.,Khlebnikov, Vsevolod A.,Korneev, Sergei M.
supporting information, p. 4292 - 4301 (2013/06/27)
The Rh2(OAc)4-catalyzed domino reaction of 2H-azirines with 2-acyl-2-diazoacetates provides a unique synthetic approach to non-fused 2H-1,4-oxazines. The reaction proceeds via sequential formation of a rhodium carbenoid, an azirinium
Antiprotozoal diamidines
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, (2008/06/13)
Diamidines of the formula STR1 wherein X is a propylene, isobutylene, guanidine, pyrrole, tetrazole, imidazole or substituted imidazole group; and 2-[4-(2-imidazolinyl)phenyl]-6-(2-imidazolinyl)indole, are useful in the treatment of certain protozoal infections in mammals, particularly in cattle.