33578-24-4Relevant academic research and scientific papers
An efficient preparation of β-ketophosphine oxides from alkynylphosphine oxides with benzaldehyde oxime as a hydroxide source
Chen, Lu-Lu,Zhang, Jing-Wen,Yang, Wan-Wan,Chen, Pei,Chen, Dan-Yun,Wang, Yan-Bo
, p. 3003 - 3009 (2019/03/20)
An effective and facile transitio-metal-free method has been developed for the synthesis of β-ketophosphine oxides from alkynylphosphine oxides with benzaldehyde oxime as a hydroxide surrogate. The current methodology provides simple access to various β-ketophosphine oxides in moderate to excellent yields with a broad substrate scope.
TIN(II) CHLORIDE CATALYZED ADDITION OF DIAZO SULFONES, DIAZO PHOSPHINE OXIDES, AND DIAZO PHOSPHONATES TO ALDEHYDES.
Holmquist, Christopher R.,Roskamp, Eric J.
, p. 1131 - 1134 (2007/10/02)
Diazo sulfones, diazo phosphine oxides, and diazo phosphonates add to aldehydes in the presence of a catalytic amounts of tin(II) chloride to yield β-keto sulfones, β-keto phosphine oxides, and β-keto phosphonates, respectively.Reactions with primary aldehydes proceed in higher yields, 53-79percent, than those of secondary aldehydes, 42-56percent.Reactions with tertiary aldehydes, which are more sterically encumbered substrates, give only 5-36percent yields. KEY WORDS: Tin(II) chloride, catalyst, β-keto sulfones, β-keto phosphine oxides, and β-keto phosphonates.
COMPOSES ORGANIQUES DU PHOSPHORE XIV VOIES D'ACCES AUX SELS DE DIHYDROAZAPHOSPHORINANIUM-1,4 ET DES Pv AZAPHOSPHORINES-1,4 CORRESPONDANTES. SYNTHESES DES HETEROCYCLES SUBSTITUES EN 2 ET 6 PAR DES GROUPEMENTS ter-BUTYLE
Skolimowski, J.,Skowronski, R.,Simalty, M.
, p. 159 - 166 (2007/10/02)
The title compounds 11 were obtained from δ-diketo-dipinacolyl phosphonium cations 8 by action of AcONH4/AcOH.These cations were prepared according to three different methods A, B and C.Method B allows a direct synthesis of cation 8 from a pinacolyl phosp
