17281-71-9Relevant academic research and scientific papers
HYDRAZONES FROM YLIDES AND DIAZONIUM SALTS: A CONVENIENT SPOT TEST FOR STABILIZED YLIDES OF PHOSPHORUS, ARSENIC, AND SULFUR
Froyen, Paul,Juvvik, Paul
, p. 83 - 92 (2007/10/02)
The reactions of a series of stabilized ylides of phosphorus, arsenic and sulfur with 2,4-dinitrobenzenediazonium tetrafluoroborate are described.The reaction courses, leading either to azo-onium salts (II), azo-onium ylides (III), formazanes (IV) or hydr
Reaction of 2,2,6-Trimethyl-1,3-dioxin-4-one with Isoquinolinium and Pyridinium Ylides
Sato, Masayuki,Kanuma, Norio,Kato, Tetsuzo
, p. 4359 - 4364 (2007/10/02)
The reactions of diketene-acetone adduct (2,2,6-trimethyl-1,3-dioxin-4-one) (1) with heterocyclic ylides were investigated.Heating of the adduct with isoquinolinium bis(ethoxycarbonyl)methylide (3a) gave ethyl 1-acetyl-2-hydroxypyrroloisoquinoline-3-carboxylate (6a).Under similar conditions, isoquinolinium cyano(ethoxycarbonyl)methylide (3b) and phenacylide (3d) gave 1-acetyl-2-ethoxycarbonyloxypyrroloisoquinoline-3-carbonitrile (7) and 1-acetyl-3-benzoyl-2-hydroxypyrroloisoquinoline (6d), respectively.Isoquinolinium dicyanomethylide (3e) reacted with the adduct in a different manner to give bis(6-methyl-4-oxo-4H-1,3-oxazin-2-yl)methylide (8).Pyridinium ylides similarly reacted with the adduct to give indolizines and oxazinylmethylides.Keywords---diketene-acetone adduct; diketene: acetylketene; pyridinium methylides; isoquinolinium methylides; cycloaddition; pyrroloisoquinolines; indolizines; 1,3-oxazin-4-ones
The Nucleophilic Reactivity of Organophosphorus Compounds. Part 4. The Alkylation of Phosphorus Acid Anions with 'Onium Keten Acetals
Zaslona, Alexander T.,Hall, C. Dennis
, p. 3059 - 3064 (2007/10/02)
The preparations of phosphonium and pyridinium keten acetals are reported and their reactions with a variety of phosphorus acid anions are described.The novel pyridinium keten acetals are useful reagents for the alkylation of various acid anions in aprotic, aqueous-emulsion media.
