Search Results - "Nikolova, R D"

Ultrafast hydrogen bond dynamics and partial electron transfer after photoexcitation of diethyl ester of 7-(diethylamino)-coumarin-3-phosphonic acid and its benzoxaphosphorin analog by Wagner, M S, Ilieva, E D, Petkov, P St, Nikolova, R D, Kienberger, R, Iglev, H

“…The solvation dynamics after optical excitation of two phosphono-substituted coumarin derivatives dissolved in various solutions are studied by fluorescence…”
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Crystal Structure of 4-Isonicotinoyl Coumarin by IVANOVA, B. B., NIKOLOVA, R. D., ZAREVA, S., MAYER-FIGGE, H., SHELDRICK, W. S., SPITELLER, M.

“…The structure of 4-isonicotinoylcoumarin was determine by X-ray crystallography. A symmetry operation (-x+2, -y+1, -z) generates the whole molecule. The…”
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Ethyl esters of coumarin-3-phosphonic acid and 1,2-benzoxaphosphorine-3-carboxylic acid: crystal structure, spectroscopic and theoretical elucidation by Koleva, B. B., Nikolova, R. D., Zareva, S., Kolev, T., Bojilova, A. G., Mayer-Figge, H., Sheldrick, W. S.

“…IR-spectroscopic characterization of the coumarin-3-phosphonic acid and 1,2-benzoxaphosphorine-3-carboxylic acid ethyl esters has been carried out by means of…”
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A new and efficient method for conjugate addition of trialkylphosphites to 3-acylsubstituted coumarins by Nikolova, Rositca D., Bojilova, Anka G., Rodios, Nestor A.

“…A new and efficient conjugate addition of trialkylphosphites to 3-ω-bromoacetylcoumarin 1 catalysed by p-toluenesulfonic acid (TsOH) has been studied. Under…”
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Hydrogenation/Regioselective C-Acylation Reaction of Diethyl Coumarin-3-phosphonate With NaBH4/Acid Anhydrides: A New One-Pot Tandem Reaction by Petkova, Nevena I., Nikolova, Rositca D., Bojilova, Anka G., Rodios, Nestor A., Raptopoulou, C. P.

“…The one-pot tandem reaction of diethyl coumarin-3-phosphonate 1 with a mixture of sodium borohydride/acid anhydrides gives mainly the corresponding…”
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Regio- and Stereoselective [2+2] Photodimerization of 3-Substituted 2-Alkoxy-2-oxo-2H-1,2-benzoxaphosphorines by Nikolova, Rositca D., Vayssilov, G. N., Rodios, Nestor, Bojilova, Anka

“…Diethyl 1,2-benzoxaphosphorine-3-carboxylates 5 undergo a regio- and stereoselective [2+2] photodimerization reaction in methanol solution under the action of…”
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Elevated Myoglobin Is Associated with Peripheral Vascular Disease and Cerebrovascular Accidents by Nikolova, Boriana R., MD, Breburda, Christian S., MD, Borges, Chad R., PhD, Rai, Samita, Drachman, David, PhD

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Circulating HDL/Apolipoprotein A1 des Q243 Ratio Is Significantly Correlated with Coronary Artery Disease and Diabetes Mellitus by Nikolova, Boriana R., MD, Schaab, Matthew R., PhD, Borges, Chad R., PhD, Drachman, David, PhD, Breburda, Christian S., MD

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Newly Determined Oxidized HDL Subfractions Correlate with Coronary Artery Disease by Nikolova, Boriana R., MD, Borges, Chad R., PhD, Breburda, Christian S., MD, Schaab, Matthew R., PhD, Drachman, David, PhD

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Theoretical elucidation of the regioselectivity in a tandem 1,4-hydride addition/acylation of diethylphosphonocoumarin by Petkova, Nevena I., Vayssilov, Georgi N., Nikolova, Rositca D., Bojilova, Anka G.

“…The paper reports a computational study at MP2 and B3LYP levels of a tandem reduction/acylation reaction of the diethyl ester of coumarin-3-phosphonic acid…”
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