Chemijos terminų aiškinamasis žodynas – 2-asis patais. ir papild. leid. – Vilnius: Mokslo ir enciklopedijų leidybos institutas. Kazys Daukšas, Jurgis Barkauskas, Vitas Daukšas. 2003.
Antarafacial - suprafacial — Antarafacial and suprafacial are two topological concepts in organic chemistry describing the relationship between two simultaneous chemical bond making and/or bond breaking processes in or around a reaction center [IUPAC Gold Book definition… … Wikipedia
antarafacial — adjective Of a chemical reaction, involving two simultaneous changes in bonding to opposite faces of a common centre (or related centres) of a molecular fragment … Wiktionary
Sigmatropic reaction — A Sigmatropic reaction in organic chemistry is a pericyclic reaction wherein the net result is one sigma bond changed to another sigma bond [F.A. Carey, R.J. Sundberg, Advanced Organic Chemistry Part A ISBN 0 306 41198 9] . In this type of… … Wikipedia
Stevens rearrangement — The Stevens rearrangement in organic chemistry is an organic reaction converting quaternary ammonium salts and sulfonium salts to the corresponding amines or sulfides in presence of a strong base in a 1,2 rearrangement.The reactants can be… … Wikipedia
antarafacialinė reakcija — statusas T sritis chemija apibrėžtis Dviejų naujų σ ryšių susidarymas skirtingose π sistemos plokštumos pusėse. atitikmenys: angl. antarafacial reaction rus. антарафациальная реакция … Chemijos terminų aiškinamasis žodynas
антарафациальная реакция — antarafacialinė reakcija statusas T sritis chemija apibrėžtis Dviejų naujų σ ryšių susidarymas skirtingose π sistemos plokštumos pusėse. atitikmenys: angl. antarafacial reaction rus. антарафациальная реакция … Chemijos terminų aiškinamasis žodynas
Cycloaddition — A cycloaddition is a pericyclic chemical reaction, in which two or more unsaturated molecules (or parts of the same molecule) combine with the formation of a cyclic adduct in which there is a net reduction of the bond multiplicity. [1] The… … Wikipedia
Cicloadición — Una cicloadición es una reacción química pericíclica en la que dos enlaces π se pierden y se forman dos enlaces σ,[1] la reacción resultante es una reacción de ciclización. Las cicloadiciones suelen ser descritas por el tamaño del esqueleto de… … Wikipedia Español
Möbius aromaticity — In organic chemistry, Möbius aromaticity is a special type of aromaticity believed to exist in a number of organic molecules. In terms of MO theory these compounds have in common a monocyclic array of molecular orbitals in which there is an odd… … Wikipedia
Vitamin D — is a group of fat soluble prohormones, the two major forms of which are vitamin D2 (or ergocalciferol) and vitamin D3 (or cholecalciferol).cite web|url=http://dietary supplements.info.nih.gov/factsheets/vitamind.asp|title=Dietary Supplement Fact… … Wikipedia
