β-Diphenylphosphorylated alkanones and related compounds: synthesis and structure
作者:E. I. Goryunov、G. V. Bodrin、I. B. Goryunova、Yu. V. Nelyubina、P. V. Petrovskii、T. V. Strelkova、A. S. Peregudov、A. G. Matveeva、M. P. Pasechnik、S. V. Matveev、E. E. Nifant’ev
DOI:10.1007/s11172-013-0106-1
日期:2013.3
The reactions of diphenyl(diisopropyl)chlorophosphine with arylidene(heteroarylidene)-acetones and 3-benzylidenepentane-2,4-dione in the presence of acetic acid proceed at a high rate at room temperature to afford the corresponding β-diorganylphosphorylated alkanones and alkanediones in high yields. The reaction of diphenylchlorophosphine with 4-methoxybut-3-en-2-one and dibenzylideneacetone carried out under similar conditions at the equimolar reagent ratio can serve as a convenient method for the synthesis of unique β-diphenylphosphorylalkenones. The structures of compounds obtained were established by IR, Raman, and NMR spectroscopy and X-ray diffraction.
在乙酸存在下,二苯基(二异丙基)氯膦与芳基(杂芳基)-丙酮和 3-亚苄基-2,4-戊二酮的反应在室温下以较高的速率进行,并以较高的产率得到相应的 β-二芳基磷化烷酮和烷二酮。二苯基氯化膦与 4-甲氧基丁-3-烯-2-酮和二亚苄基丙酮在类似条件下以等摩尔试剂比进行反应,可以作为合成独特的 β-二苯基磷酰烯酮的简便方法。通过红外光谱、拉曼光谱、核磁共振光谱和 X 射线衍射确定了所获化合物的结构。
Copper-catalyzed stereo- and regioselective hydrophosphorylation of terminal alkynes: scope and mechanistic study
highly stereo- and regioselective hydrophosphorylation of terminalalkynes to E-alkenylphosphorus compounds was well developed. It represents a general and practical hydrophosphorylation method, of which diarylphosphine oxide, dialkylphosphine oxide and dialkyl phosphite all had effective P(O)H parts to react with different types of terminalalkynes. Contrary to previous air-sensitive reports, all the reactions
One part curable compositions containing deactivated hydrosilation catalyst and method for preparing same
申请人:DOW CORNING CORPORATION
公开号:EP0662490A2
公开(公告)日:1995-07-12
The catalyst inhibitors of the present invention react with conventional platinum group metal-containing hydrosilation catalysts to form complexes that delay curing of compositions containing these complexes in the absence of oxygen and SiH-reactive hydroxylated compounds. The curable compositions comprise (1) curable compounds containing alkenyl radicals and/or silicon-bonded hydroxyl groups, (2) curing agents containing silicon-bonded hydrogen atoms, and (3) a platinum group metal-containing hydrosilation catalyst. Preferred inhibitors provide long term storage stability.
Regioselective aza-Michael addition of azoles to 4-(diphenylphosphoryl)but-3-en-2-one
作者:Maria A. Galkina、Georgy V. Bodrin、Evgenii I. Goryunov、Irina B. Goryunova、Aleksandra S. Sherstneva、Jumakan S. Urmambetova、Natalia G. Kolotyrkina、Mikhail M. Il’in、Valery K. Brel、Konstantin A. Kochetkov
DOI:10.1016/j.mencom.2016.01.029
日期:2016.1
Aza-Michael reaction of (E)-4-(diphenylphosphoryl)but-3-en-2-one with mono- and bicyclic nitrogen heterocycles proceeds regio-selectively in the absence of catalysts to give the corresponding beta-diphenylphosphoryl-beta-azahetarylalkanones. Its reaction with imidazole in the presence of chiral organocatalysts affords the corresponding enantiomerically enriched adduct in higher yield.
DARLING, S. D.;BRANDES, S. J., J. ORG. CHEM., 1982, 47, N 8, 1413-1416