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2. Halogenation - Wikipedia

   en.wikipedia.org/wiki/Halogenation

   The regiochemistry of the halogenation of alkanes is largely determined by the relative weakness of the C–H bonds. This trend is reflected by the faster reaction at tertiary and secondary positions. Free radical chlorination is used for the industrial production of some solvents: [2] CH 4 + Cl 2 → CH 3 Cl + HCl

3. Zaytsev's rule - Wikipedia

   en.wikipedia.org/wiki/Zaytsev's_rule

   More generally, Zaytsev's rule predicts that in an elimination reaction the most substituted product will be the most stable, and therefore the most favored. The rule makes no generalizations about the stereochemistry of the newly formed alkene, but only the regiochemistry of the elimination reaction. While effective at predicting the favored ...

4. Regioselectivity - Wikipedia

   en.wikipedia.org/wiki/Regioselectivity

   In organic chemistry, regioselectivity is the preference of chemical bonding or breaking in one direction over all other possible directions. [1] [2] It can often apply to which of many possible positions a reagent will affect, such as which proton a strong base will abstract from an organic molecule, or where on a substituted benzene ring a further substituent will be added.

5. Hydrohalogenation - Wikipedia

   en.wikipedia.org/wiki/Hydrohalogenation

   Regiochemistry follows from the reaction mechanism, which exhibits halogen attack on the least-hindered unsaturated carbon. The mechanism for this chain reaction resembles free radical halogenation, in which the peroxide promotes formation of the bromine radical. However, this process is restricted to addition of HBr.

6. Syn and anti addition - Wikipedia

   en.wikipedia.org/wiki/Syn_and_anti_addition

   After addition to a straight-chain alkene such as ethene (C 2 H 4), the resulting alkane will rapidly and freely rotate around its single sigma bond under normal conditions (i.e. room temperature). Thus whether substituents are added to the same side (syn) or opposite sides (anti) of a double can usually be ignored due to free rotation.

7. NYT ‘Connections’ Hints and Answers Today, Sunday, December 15

   www.aol.com/nyt-connections-hints-answers-today...

   Today's NYT Connections puzzle for Sunday, December 15, 2024The New York Times

8. Substitution reaction - Wikipedia

   en.wikipedia.org/wiki/Substitution_reaction

   A substitution reaction (also known as single displacement reaction or single substitution reaction) is a chemical reaction during which one functional group in a chemical compound is replaced by another functional group. [1]

9. Why food safety experts stand behind the 'when in doubt ... - AOL

   www.aol.com/why-food-safety-experts-stand...

   "In reality," he said, "foodborne illnesses can lead to severe and long-lasting health issues, hospitalization or even death, especially for vulnerable populations like the immunocompromised ...