4923-85-7Relevant academic research and scientific papers
Reactivity of allyl anions of allylphosphine-boranes towards electrophiles
Stankevic, Marek,Siek, Marcin,Pietrusiewicz, K. Michal
experimental part, p. 102 - 126 (2011/06/20)
The reactivity of mesomeric carbanions derived from allylphosphine-boranes varies as a function of electrophile. Small sp3-electrophiles react predominantly at the α carbon atom whereas bulky sp3- electrophiles and carbonyl compounds react mainly at the γ carbon. In the case of electron-deficient aldehydes reduction of carbonyl group and formation of the corresponding alcohols is observed. This is attributed to the weakly reducing properties of carbanions derived from allylphosphine-boranes, whose mesomeric form resembles the structure of a modified borohydride. ARKAT-USA, Inc.
Organic phosphorus compounds 106.1 a 31P-NMR study of phosphinous-, phosphinic-, and thiophosphinic amides
Maier, Ludwig,Diel, Peter J.
, p. 273 - 300 (2007/10/03)
The synthesis, physical, chemical and spectroscopic properties of eight different types of phosphinous-, phosphinic-and thiophosphinic amides are reported. It is shown that the 31P-chem. shifts of tertiary amides are at lower magnetic field than that of secondary amides. As an exception, in the bis(tertiary butyl) series this trend is reversed.
MECHANISM OF THE CHLOROLYSIS REACTION OF P-S BOND IN PHOSPHORUS THIOLOESTERS. THE EFFECT OF THE SUBSTITUENT AT SULFUR ATOM ON THE STEREOCHEMISTRY
Krawiecka, Bozena,Wojna-Tadeusiak, Elzbieta
, p. 69 - 72 (2007/10/02)
The effect of the substituent at sulfur atom on the stereochemistry of the chlorolysis reaction of P-S bond in phosphorus thioloesters was studied.It was found that the presence of the substituents lowering electron density at this atom reduces the reacti
REACTION OF SELENOESTERS OF PHOSPHORUS ACIDS WITH HALOGENS
Krawiecka, Bozena
, p. 173 - 176 (2007/10/02)
Reaction of phosphinoselenoates 1a-b with elemental chlorine, bromine, iodine as well as sulfuryl chloride involves halogenolysis of P-Se bond and formation of tert-butylphenylphosphinohalogenate 7.Intermediate products, containing one and two phosphorus atoms were detected by 31P NMR.The similarities and differences in the behavior of phosphorus selenoesters and their thio-analogues are discussed.
SILYLPEROXIDES AS SELECTIVE OXYGENATION REAGENTS IN PHOSPHORUS CHEMISRTY
Kowalski, Jozef,Wozniak, Lucyna,Chojnowski, Julian
, p. 125 - 128 (2007/10/02)
Bis(trimethylsilyl)peroxide (BSPO) can be used for chemo- and stereoselective generation of P=O group by oxygenation of P(III) centre and transformation of P=S and P=Se groups.
Reaction of Thiolo and Seleno Esters of Phosphorus Acids with Halogens. 1. Stereochemical and 31P NMR Studies of Reaction of S-Methyl tert-Butylphenylphosphinothiolate with Elemental Chlorine and Sulfuryl Chloride
Krawiecka, B.,Michalski, J.,Wojna-Tadeusiak, E.
, p. 4201 - 4208 (2007/10/02)
Reaction of S-methyl tert-butylphenylphosphinothiolate (4) with elemental chlorine and sulfuryl chloride involves chlorolysis of the P-S bond and formation of the tert-butylphenylphosphinochloridate 5.It is demonstrated here that the stereoselectivity of
