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  2. Syn and anti addition - Wikipedia

    en.wikipedia.org/wiki/Syn_and_anti_addition

    1,2-disubstituted Cycloalkene undergoing syn and anti addition. Syn addition is the addition of two substituents to the same side (or face) of a double bond or triple bond, resulting in a decrease in bond order but an increase in number of substituents. [3] Generally the substrate will be an alkene or alkyne.

  3. Cycloalkene - Wikipedia

    en.wikipedia.org/wiki/Cycloalkene

    In organic chemistry, a cycloalkene or cycloolefin is a type of alkene hydrocarbon which contains a closed ring of carbon atoms and either one or more double bonds, but has no aromatic character. Some cycloalkenes, such as cyclobutene and cyclopentene , can be used as monomers to produce polymer chains. [ 1 ]

  4. Simmons–Smith reaction - Wikipedia

    en.wikipedia.org/wiki/Simmons–Smith_reaction

    The Simmons–Smith reaction is an organic cheletropic reaction involving an organozinc carbenoid that reacts with an alkene (or alkyne) to form a cyclopropane. [1] [2] [3] It is named after Howard Ensign Simmons, Jr. and Ronald D. Smith.

  5. Diels–Alder reaction - Wikipedia

    en.wikipedia.org/wiki/Diels–Alder_reaction

    Despite the fact that the vast majority of Diels–Alder reactions exhibit stereospecific, syn addition of the two components, a diradical intermediate has been postulated [7] (and supported with computational evidence) on the grounds that the observed stereospecificity does not rule out a two-step addition involving an intermediate that ...

  6. Hydroboration–oxidation reaction - Wikipedia

    en.wikipedia.org/wiki/Hydroboration–oxidation...

    Hydroboration–oxidation reaction is a two-step hydration reaction that converts an alkene into an alcohol. [1] The process results in the syn addition of a hydrogen and a hydroxyl group where the double bond had been.

  7. The 5 Handbag Trends to Update Your Look for 2025 - AOL

    www.aol.com/5-handbag-trends-look-2025-150000235...

    Seen on the runways of Max Mara, Louis Vuitton, and Christian Dior, the fanny pack—once considered solely functional for hands-free convenience—has transformed itself into a signifier of style ...

  8. The 6 underrated destinations travel planners say will be ...

    www.aol.com/6-underrated-destinations-travel...

    Arena told BI that Uruguay is a hot spot for art and culture. "There are many museums and galleries to choose from throughout the Punta del Este, Montevideo, and Colonia del Sacramento regions in ...

  9. Markovnikov's rule - Wikipedia

    en.wikipedia.org/wiki/Markovnikov's_rule

    The rule states that with the addition of a protic acid HX or other polar reagent to an asymmetric alkene, the acid hydrogen (H) or electropositive part gets attached to the carbon with more hydrogen substituents, and the halide (X) group or electronegative part gets attached to the carbon with more alkyl substituents. This is in contrast to ...